2015 IL App (1st) 143173 

 FOURTH DIVISION

 September 3, 2015 

No. 1-14-3173 

 

STEFAN ZLATEV, ) 

 ) 

Plaintiff-Appellee, ) Appeal from the 

 ) Circuit Court of 

v. ) Cook County. 

 ) 

GRANT MILLETTE, ) No. 11 L 013158 

 ) 

Defendant-Appellant, ) Honorable 

 ) Moira S. Johnson, 

(James Lee, Zachary Kondratenko, ) Judge Presiding. 

Nick Gianfortune, and Tom Pravongviengkham, ) 

Defendants). ) 

JUSTICE ELLIS delivered the judgment of the court, with opinion. 

Presiding Justice Fitzgerald Smith and Justice Howse concurred in the judgment and 

opinion. 

OPINION

¶ 1 In this appeal, we must answer two certified questions from the trial court regarding the 

relation-back doctrine, codified in section 2-616(d) of the Code of Civil Procedure (735 ILCS 

5/2-616(d) (West 2014)). The first certified question is: 

"Does an amended complaint against a new defendant filed after the expiration of 

the statute of limitations relate back to plaintiff's original complaint as a case of mistaken 

identity under [section 2-616(d)] where the allegations against the new defendant are the 

same as the allegations against originally named defendants who remain parties in interest 

and defendants?" 

¶ 2 Our answer is that, when deciding whether an amended complaint relates back to the filing 

date of an initial complaint under section 2-616(d), the relevant inquiry is whether the 

newly-added party knew or should have known that the plaintiff made a mistake in failing to name 
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him or her as a defendant in the initial complaint. The plaintiff's decision to retain the original 

defendants in an amended complaint is irrelevant, as it sheds no light on what the defendant knew 

or should have known at the time the plaintiff filed the initial complaint. It only sheds light on the 

plaintiff's intent in amending the complaint, which is not the relevant focus. 

¶ 3 The second question certified by the trial court is: 

"Does plaintiff's lack of knowledge regarding the identity of a potentially culpable 

party constitute mistaken identity under the relation back statute in [section 2-616(d)]?" 

¶ 4 Our answer is that a plaintiff's lack of knowledge regarding a party's identity—or, for that 

matter, a lack of knowledge regarding a known party's involvement in the events giving rise to the 

cause of action—may constitute a mistake of identity under section 2-616(d). 

¶ 5 I. BACKGROUND

¶ 6 On September 10, 2011, plaintiff Stefan Zlatev and two friends went to an apartment 

building at 2423 North Seminary Avenue in Chicago to visit another friend, who lived in the 

first-floor apartment. When they arrived, a party was being held in the second-floor apartment. The 

two apartments shared a common entrance from the street. James Lee, a resident of the 

second-floor apartment, prevented plaintiff and his two friends from entering the building. 

Plaintiff and Lee began to argue and, according to plaintiff, Lee pushed plaintiff's friend. A fight 

then ensued, spilling out of the building and into the middle of Seminary Avenue. 

¶ 7 During the fight, someone struck plaintiff in the head with a brick, breaking several bones 

in his face. Plaintiff did not see who hit him with the brick. 

¶ 8 The police prepared a report dated November 8, 2011 regarding the incident. The report 

said that Mariyana Lechova, a witness to the fight, saw "a male white, 22 years old, 5'7"-5'8" tall, 

170 pounds, short blond hair, and red shirt" walk away from the fight with a brick in his hand. 
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Lechova did not see this person hit plaintiff with the brick, but she saw plaintiff sitting on the curb 

holding his face. Lee told the police that his roommate, Zachary Kondratenko, told him that 

someone named "Nick Giansanti *** might have had something to do with the incident." 

Kondratenko told the police that he "hear[d] Nick Gianfortune's name mentioned but he did not 

remember *** who was talking about it." 

¶ 9 On December 6, 2011, plaintiff filed his initial complaint. Lee and Kondratenko were 

listed as defendants, along with "John Doe #1 [through] John Doe #5." John Does 1 through 4 were 

named as other residents of the second-floor apartment along with Lee and Kondratenko. The 

complaint alleged that defendant "was struck in the head with a brick by Defendant, John Doe #5." 

¶ 10 On July 12, 2012, plaintiff filed his first amended complaint, which named Lee and Nick 

Gianfortune as defendants. Plaintiff alleged that Gianfortune struck him with the brick. 

¶ 11 Plaintiff filed a second amended complaint on October 18, 2012. This complaint retained 

Lee and Gianfortune as defendants and added Tom Pravongviengkham. Plaintiff alleged that 

Gianfortune and Pravongviengkham hit him in the head with "a heavy object." On February 1, 

2013, plaintiff filed a third amended complaint, which also alleged that Gianfortune and 

Pravongviengkham hit him with the heavy object.

¶ 12 On June 15, 2013, Gianfortune answered plaintiff's written interrogatories. Gianfortune 

said that he recalled that defendant was present at the time of the incident. Gianfortune also said 

that he had spoken to defendant about the lawsuit after he had been served with the complaint. 

¶ 13 On February 7, 2014, plaintiff filed his fourth amended complaint. That complaint 

alternatively alleged that defendant, Gianfortune, or Pravongviengkham struck plaintiff with the 

brick. 

¶ 14 Defendant moved to dismiss the fourth amended complaint pursuant to section 2-619(a)(5) 
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of the Code of Civil Procedure (735 ILCS 5/2-619(a)(5) (West 2014)), alleging that plaintiff failed 

to file his fourth amended complaint within the two-year statute of limitations applicable to his 

claims. See 735 ILCS 5/13-202 (West 2010) (two-year limitations period applies to actions 

alleging personal injury). While acknowledging that the limitations period had expired before he 

filed the fourth amended complaint, plaintiff argued that his fourth amended complaint related 

back to the filing date of his initial complaint under section 2-616(d), because he had not known 

about defendant's involvement until after the limitations period had run. 

¶ 15 The trial court denied defendant's motion to dismiss, finding that the fourth amended 

complaint related back to the filing date of plaintiff's earlier complaints. (Each of the earlier 

complaints was filed before the limitations period expired.) After denying defendant's motion to 

reconsider that ruling, the trial court, at defendant's request, certified two questions for immediate 

appeal:

"a. Does an amended complaint against a new defendant filed after the expiration of 

the statute of limitations relate back to plaintiff's original complaint as a case of mistaken 

identity under [section 2-616(d)] where the allegations against the new defendant are the 

same as the allegations against originally named defendants who remain parties in interest 

and defendants? 

b. Does plaintiff's lack of knowledge regarding the identity of a potentially culpable 

party constitute mistaken identity under the relation back statute in [section 2-616(d)]?" 

¶ 16 II. ANALYSIS

¶ 17 This case is before us pursuant to Illinois Supreme Court Rule 308 (eff. Feb. 26, 2010), 

which permits a trial court to certify questions of law for our review. The trial court must find that 

there is "substantial ground for difference of opinion" as to the answer to the question and an 
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immediate appeal must be likely to "materially advance" the termination of the litigation. Ill. S. Ct. 

R. 308(a) (eff. Feb. 26, 2010). When addressing certified questions under Rule 308, our review is 

generally limited to the questions presented to us. De Bouse v. Bayer AG, 235 Ill. 2d 544, 550 

(2009); Cincinnati Insurance Co. v. Chapman, 2012 IL App (1st) 111792, ¶ 21. We review 

certified questions de novo, as they are necessarily questions of law. De Bouse, 235 Ill. 2d at 550. 

¶ 18 At the outset, we note that defendant's arguments are focused on the propriety of the trial 

court's order denying the section 2-619 motion to dismiss. But that is not our focus in an appeal 

under Rule 308. Despite defendant's attempts to expand the scope of this appeal beyond the 

certified questions—questions that defendant himself formulated—we will limit our analysis to 

answering the certified questions.

¶ 19 We first address whether relation-back can apply when an amended pleading retains 

defendants named in an earlier complaint. We then turn to whether a lack of knowledge of a 

defendant's identity can qualify as a mistake under section 2-616(d). 

¶ 20 A. Retention of Originally-Named Defendants

¶ 21 Under section 2-616(d), an amended complaint filed after the statute of limitations has 

expired relates back to the filing date of the original complaint if three requirements are met: (1) 

the plaintiff filed his original action within the limitations period; (2) the person against whom the 

amended complaint is brought, "within the time that the action might have been brought or the 

right asserted against him or her plus the time for service permitted under Supreme Court Rule 

103(b) ((Ill. S. Ct. R. 103(b) (eff. July 1, 2007)), received such notice of the commencement of the 

action that the person will not be prejudiced in maintaining a defense *** and knew or should have 

known that, but for a mistake concerning the identity of the proper party, the action would have 

been brought against him or her"; and (3) the cause of action in the amended pleading "grew out 
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of" the same transaction or occurrence as the original complaint. (Emphasis added.) 735 ILCS 

5/2-616(d) (West 2014). 

¶ 22 In this case, the portion of the second prong of section 2-616(d) we highlighted above is at 

issue. Defendant seeks clarification as to what constitutes "a mistake concerning the identity of the 

proper party." Defendant argues that section 2-616(d) does not apply where, as in this case, one 

defendant is sued, then the plaintiff adds a second defendant after the running of the limitations 

period but does not dismiss the original defendant. In that scenario, defendant argues, a plaintiff 

cannot possibly claim a case of mistaken identity, because if the plaintiff were "mistaken" as to the 

identity of the proper defendant, he would have dismissed the original, "mistaken" defendant and 

substituted the new, proper defendant—he would have corrected the "mistake." But where, 

instead, the plaintiff merely adds a second defendant and keeps the original defendant in the case

as well, it must follow that plaintiff was not "mistaken" as to the "identity" of the proper defendant 

but, rather, that the plaintiff simply discovered the existence of a second, potentially culpable 

defendant to go along with the first one. 

¶ 23 For the reasons that follow, we disagree. Recent case law, and the plain language of section 

2-616(d), compel a different result. 

¶ 24 Section 2-616(d), Illinois's relation-back statute, was designed to mirror Federal Rule of 

Civil Procedure 15(c)(1)(C), which likewise permits an amended pleading naming a new 

defendant to relate back to the initial complaint's filing date when, among other things, the new 

defendant "knew or should have known that the action would have been brought against it, but for 

a mistake concerning the proper party's identity." Fed. R. Civ. P. 15(c)(1)(C) (eff. Dec. 1, 2009); 

see also Borchers v. Franciscan Tertiary Province of Sacred Heart, Inc., 2011 IL App (2d) 

101257, ¶ 42; Maggi v. RAS Development, Inc., 2011 IL App (1st) 091955, ¶ 28 (section 2-616(d) 
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modeled after Rule 15(c)(1)(C)). Because of the similarities between these provisions, Illinois 

courts have looked to federal precedent interpreting Rule 15(c)(1)(C) for guidance in interpreting 

section 2-616(d). See, e.g., Borchers, 2011 IL App (2d) 101257, ¶ 45; Maggi, 2011 IL App (1st) 

091955, ¶ 28; Polites v. U.S. Bank National Ass'n, 361 Ill. App. 3d 76, 88 (2005). 

¶ 25 The most important federal case on relation-back is a case barely mentioned by the parties,

Krupski v. Costa Crociere S.p.A., 560 U.S. 538, 541 (2010), where the United States Supreme 

Court held that "relation back under Rule 15(c)(1)(C) depends on what the party to be added [as a 

defendant] knew or should have known, not on the amending party's knowledge or its timeliness in 

seeking to amend the pleading." In Krupski, the plaintiff was injured aboard a cruise ship. Id. There 

were two companies that were potentially responsible for operating the cruise ship: Costa Cruises 

and Costa Crociere. Id. at 542-43. Shortly before the expiration of the limitations period, the 

plaintiff sued Costa Cruise, alleging that it operated the ship. Id. at 543. During discovery—after 

the limitations period had expired—Costa Cruise informed the plaintiff several times that it was 

not the proper plaintiff because Costa Crociere actually operated the vessel. Id. at 543-44. The 

plaintiff then dismissed Costa Cruise from the suit and added Costa Crociere as the defendant. Id.

at 544. 

¶ 26 The trial court dismissed the amended complaint as untimely, refusing to relate it back to 

the original complaint and reasoning that "the word 'mistake' should not be construed to 

encompass a deliberate decision not to sue a party whose identity the plaintiff knew before the 

statute of limitations had run." Id. at 545. The Eleventh Circuit affirmed, noting that the plaintiff 

knew or should have known of the existence of Costa Crociere, and that the plaintiff was not 

diligent in filing her amended complaint. Id. at 546. 
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¶ 27 The Supreme Court reversed, rejecting the lower courts' focus on what the plaintiff knew or 

should have known. Id. at 547-54. The Court reasoned that "Rule 15(c)(1)(C)(ii) asks what the 

prospective defendant knew or should have known ***, not what the plaintiff knew or should have 

known at the time of filing her original complaint." (Emphases in original.) Id. at 548. To the 

extent that the plaintiff was aware of the identity of the new defendant, that knowledge was only 

relevant if it related to "the defendant's understanding of whether the plaintiff made a mistake 

regarding the proper party's identity." Id. While the Court recognized that "a deliberate choice to 

sue one party instead of another while fully understanding the factual and legal differences 

between the two parties" would not constitute a mistake, the Court stressed that "[t]he 

reasonableness of the mistake is not itself at issue." Id. at 549. Instead, the inquiry should have 

been whether the defendant could reasonably believe that the plaintiff made a mistake in not 

naming the defendant initially in a lawsuit. Id.

¶ 28 Of particular relevance to the certified question before us, the Supreme Court emphasized 

that the conduct of the plaintiff after filing the initial complaint would typically be “immaterial” to 

the relation-back question, which focuses on “what the prospective defendant reasonably should 

have understood about the plaintiff’s intent in filing the original complaint against the first 

defendant.” (Emphasis added.) Id. at 554. For example, the amount of time plaintiff waited after 

filing the initial complaint to sue the new defendant would have no bearing on what defendant 

perceived about plaintiff's intent in filing the initial complaint. Id. And we can think of no reason 

why it should matter whether, in a subsequent amendment to the complaint, a plaintiff did or did 

not continue to name the original defendant after adding the new defendant. 

¶ 29 “Krupski caused both federal and state courts to reevaluate their approach to relation 

back.” Borchers, 2011 IL App (2d) 101257, ¶ 52. The first Illinois case to cite Krupski in 
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interpreting section 2-616(d) was our decision in Maggi, 2011 IL App (1st) 091955, ¶¶ 28-32. 

There, the plaintiff's estate attempted to sue the general contractor of a construction project where 

the plaintiff had been killed. Id. ¶¶ 3-4. After the limitations period expired, the estate received a 

contract showing that a different company than the one the estate had named in its original 

complaint was the general contractor. Id. ¶ 5. The estate then filed an amended complaint naming 

the correct company as the general contractor. Id. This court, relying on Krupski, found that 

section 2-616(d) applied, because the plaintiff intended to sue the general contractor for the project

but was simply mistaken as to which company served as the general contractor. Id. ¶¶ 33-34. The 

court stressed that the actual general contractor should have known that plaintiff had intended to 

sue it from the beginning, as the plaintiff's allegations were directed at the project's general 

contractor, regardless of whether the complaint named the wrong corporate entity as that general 

contractor. Id. ¶¶ 37-38. 

¶ 30 Likewise, in Borchers, 2011 IL App (2d) 101257, ¶ 52, the appellate court applied Krupski

in finding that a plaintiff could add two individual defendants in her eavesdropping lawsuit after 

the expiration of the limitations period. The plaintiff had originally sued her former employer and 

“unknown persons” for accessing her personal email account, only later learning that two specific 

individuals were responsible for the eavesdropping. Id. ¶¶ 20-21. The trial court dismissed the 

amended complaint, finding that it did not relate back because the individual defendants were 

known to the plaintiff at the time she filed suit. Id. ¶ 23. The appellate court reversed, holding that 

under Krupski, the amended complaint related back to the original complaint, as “the plaintiff’s 

failure to name [the two individuals] in her initial complaint was a ‘mistake’ derived from her lack 

of knowledge about the nature of their involvement.” Id. ¶ 52. 
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¶ 31 Like the courts in Maggi and Borchers, we find Krupski persuasive in interpreting Illinois's 

relation-back provision. Section 2-616(d), like Rule 15(c)(1)(C), applies when a prospective 

defendant "knew or should have known that, but for a mistake concerning the identity of the proper 

party, the action would have been brought against him or her." 735 ILCS 5/2-616(d) (West 2014). 

Thus, when evaluating a mistake under section 2-616(d), the proper focus is not on whether 

plaintiff made a reasonable mistake, but whether or not the defendant could reasonably believe that 

plaintiff had made a mistake in not naming the defendant in the initial complaint.

¶ 32 This interpretation also strikes the proper balance between respecting statutes of 

limitations while adhering to the fundamental preference that disputes be decided on their merits. 

See Compton v. Ubilluz, 351 Ill. App. 3d 223, 233 (2004) (noting that section 2-616(d) should be 

interpreted in manner that would "lead to a resolution on the merits"). As the Supreme Court 

reasoned:

"A prospective defendant who legitimately believed that the limitations period had passed 

without any attempt to sue him has a strong interest in repose. But repose would be a 

windfall for a prospective defendant who understood, or who should have understood, that 

he escaped suit during the limitations period only because the plaintiff misunderstood a 

crucial fact about his identity." Krupski, 560 U.S. at 550. 

¶ 33 Contrary to defendant’s suggestion, this interpretation would not be unfair to defendants by 

extending the time for suing indefinitely, leaving defendants in a perpetual limbo as to their rights. 

Along with requiring a "mistake," section 2-616(d) also requires that the newly-added defendant 

receive notice of the lawsuit within the limitations period and the time for service of process, and 

that this notice is such that the newly-added defendant "will not be prejudiced in maintaining a 

defense on the merits" once he or she is sued. 735 ILCS 5/2-616(d) (West 2014). These notice and 
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prejudice provisions, coupled with our interpretation of the "mistaken identity" language, do not 

lead to an unfair result. If a party is aware of a lawsuit arising out of a set of facts in which he was 

involved, and if that party knows or should know that the only reason he was not sued was due to a 

mistake on the plaintiff's part, and if the notice of this lawsuit is sufficient that the party has not 

been prejudiced in his ability later to defend that suit on the merits, that party is hard-pressed to 

claim unfair treatment when the plaintiff later discovers the mistake and sues him. If anything, that 

party was lucky to have avoided the suit when it was originally filed. 

¶ 34 The facts of this case provide an excellent example. Plaintiff sought to sue the individual 

who struck him with a brick. Plaintiff originally named “John Doe #5” as that person, and later 

named Gianfortune or Pravongviengkham, alternatively, as that person. If, as plaintiff alleges, 

defendant was the person who struck plaintiff with the brick, he knew or at least should have 

known that plaintiff meant to sue him, not Gianfortune or Pravongviengkham. When plaintiff filed 

the fourth amended complaint finally naming defendant, defendant might have been surprised and 

no doubt was disappointed—but he could not plausibly claim unfair treatment. And more to the 

point, whether Gianfortune or Pravongviengkham should have remained in the suit at that point 

would have no bearing whatsoever on defendant's awareness of plaintiff's mistake in not initially 

naming him in the complaint. 

¶ 35 Having clarified the relevant issue posed by this certified question, the answer to that 

question becomes clear. If the relevant issue is what the new defendant could have reasonably 

believed when the plaintiff filed the initial complaint, it does not matter whether the 

originally-named defendants remained in the amended complaint. A plaintiff could have many 

reasons for continuing to prosecute the suit against the original defendant while adding a new 

one—the plaintiff could be pursuing a theory of joint liability or pleading in the alternative—but 
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none of those reasons are relevant to the relation-back question. The only question is whether the 

new defendant knew or should have known that the plaintiff would have sued him from the outset 

if the plaintiff had not made some mistake as to the identity of the proper defendant. 

¶ 36 We acknowledge that previous decisions have considered the plaintiff’s intent, evidenced 

by the allegations of the complaint, as dispositive in construing the relation-back doctrine. See, 

e.g., Mann v. Thomas Place, L.P., 2012 IL App (1st) 110625, ¶ 17; Maggi, 2011 IL App (1st) 

091955, ¶ 24; Polites v. U.S. Bank National Ass'n, 361 Ill. App. 3d 76, 82 (2005). Defendant 

attempts to use these statements as a reason why relation-back should not apply when the 

allegations of an amended complaint show that the plaintiff intended to sue the original defendant 

all along, that no "mistake" occurred. But the courts in those cases looked to the plaintiff's intent at 

the time he or she filed the original complaint. See Mann, 2012 IL App (1st) 110625, ¶¶ 17-18; 

Maggi, 2011 IL App (1st) 091955, ¶¶ 24, 33; Polites, 361 Ill. App. 3d at 82. Defendant asks us to 

center our analysis on plaintiff's intent at the time he or she filed the amended complaint. Our

precedent has never said that the applicability of section 2-616(d) hinges on the plaintiff's reasons 

for amending his or her complaint. 

¶ 37 Moreover, as we highlighted above, plaintiff's intent in filing the original complaint is 

relevant only to the extent that it sheds light on whether the prospective defendant was reasonable 

in concluding that the plaintiff had made a mistake when filing the initial complaint. Krupski, 560 

U.S. at 549; see also Borchers, 2011 IL App (2d) 101257, ¶ 52 (only two questions in determining 

whether complaint relates back are whether defendant knew or should have known plaintiff would 

have sued him absent a mistake, and whether defendant would be prejudiced in defending suit). 

The plaintiff's intent itself is not the focus of relation-back. Krupski, 560 U.S. at 549. 
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¶ 38 We do not mean to suggest that plaintiff's intent is altogether irrelevant in considering the 

relation-back doctrine. It is relevant, but only insofar as it may inform what the defendant knew or 

should have known about the plaintiff's intent, and typically only with regard to the manifestation 

of plaintiff's intent at the time of the initial complaint's filing.

¶ 39 We also note that the plain language of section 2-616(d) offers no support for defendant's 

position that a plaintiff must remove the originally-named defendants from an amended complaint 

for relation-back to apply. Nowhere does the statute require that a plaintiff "substitute" or 

"replace" defendants before an amended pleading can relate back. See 735 ILCS 5/2-616(d) (West 

2014). And permitting an amended complaint to relate back while retaining the originally-named 

defendants gives full effect to a plaintiff's right to plead the same cause of action in the alternative 

when, as in this case, the plaintiff is unsure of who committed the wrongdoing at issue. See 735 

ILCS 5/2-613(b) (West 2010) (party may plead alternative theories, "regardless of consistency," 

when that party "is in doubt as to which of two or more statements of fact is true"). Thus, we 

conclude that section 2-616(d) may apply even if the defendants named in the original complaint 

remain in the amended complaint.

¶ 40 Defendant cites Pruitt v. Pervan, 356 Ill. App. 3d 32 (2005), and McCarthy v. Omega Psi 

Phi Fraternity, Inc., 2011 IL App (1st) 092950, in support of his claim that section 2-616(d) does 

not apply when the originally-named defendants are retained in an amended complaint. Neither 

case supports defendant's position. In Pruitt, the plaintiff, who had slipped and fallen in an 

apartment building, sued the management company of the building. Pruitt, 356 Ill. App. 3d at 33. 

During a deposition, an employee of the management company revealed that the owners of the 

building, not the management company, were responsible for maintaining the property. Id. at 

33-34. The plaintiff then filed an amended complaint naming the owners of the building. Id. at 34. 
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The trial court dismissed the amended complaint because it was filed after the expiration of the 

limitations period had expired. Id. at 34-35. 

¶ 41 This court affirmed, holding that the complaint did not relate back under section 2-616(d). 

Id. at 37. This court found that the plaintiff had not made a mistake, that he had intended to sue the 

management company at the time he filed the original complaint, noting that the plaintiff had 

"correctly identified" the management company and that the management company "remain[ed] a 

defendant in [the] case" even after the building owner was added as a second defendant. Id.

¶ 42 Pruitt does not support defendant's position. Nowhere in Pruitt did the court say that, 

before relation-back applies, a party must dismiss the defendants named in the initial complaint. 

Moreover, to the extent that Pruitt found the plaintiff's intent itself was the reason that 

relation-back did not apply, it is no longer good law. Following Krupski and the Illinois cases 

adopting its analysis, the plaintiff's intent itself is not at issue; it is the defendant's perception of the 

plaintiff's intent that matters.

¶ 43 Nor does McCarthy, 2011 IL App (1st) 092950, support defendant's position. In McCarthy, 

the plaintiff, a member of a social fraternity, sued a fraternity officer for publishing false 

information about the plaintiff regarding an alleged hazing incident, which led to plaintiff's 

suspension from the fraternity. Id. ¶¶ 4-12. Over the next two years, plaintiff filed several amended 

complaints, continually naming the officer as the defendant. Id. ¶¶ 12, 14-15. While the trial was in 

progress, and after the limitations period had run, plaintiff filed another amended complaint adding 

the fraternity itself as a defendant, alleging that he had not been aware of the fraternity's 

involvement in encouraging his suspension until trial. Id. ¶¶ 17-18. The fraternity argued that the 

complaint was barred by the statute of limitations, but the trial court disagreed, awarding judgment 

for the plaintiff. Id. ¶¶ 22-23. 
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¶ 44 On appeal, this court held that the plaintiff did not make a mistake regarding the proper 

party's identity under section 2-616(d) because the plaintiff's pleadings showed that he clearly 

intended to sue the fraternity officer, not the fraternity, for his defamatory acts. Id. The court noted 

that, as a member of the fraternity, the plaintiff was aware that the fraternity's bylaws required that 

any decision to suspend him would have been approved by the fraternity. Id. ¶¶ 38-39. 

¶ 45 McCarthy offers no support for defendant's position because the critical fact in McCarthy 

was not whether the plaintiff kept the officer in his amended complaint. Rather, the critical point 

was that it would have been reasonable for the fraternity to believe that the plaintiff only intended 

to sue the officer, in his individual capacity, because he was the one who actually disseminated the 

defamatory information. Moreover, because plaintiff had been a member of the fraternity, the 

fraternity could reasonably assume that he was aware that the fraternity had approved his 

suspension pursuant to its bylaws, but, despite that fact, plaintiff elected not to sue the fraternity. 

Thus, in our view, the key point in McCarthy was that the fraternity could reasonably conclude that 

the plaintiff had not made a mistake in excluding it from the initial complaint—that plaintiff had 

made a conscious decision not to sue the fraternity. The officer's presence or absence from the 

amended complaint had no bearing on that conclusion. 

¶ 46 We would finally note that, though McCarthy was decided after Krupski, it made no 

mention of that decision. To the extent that one might argue that McCarthy is inconsistent with 

Krupski, we would part company with that decision and join the other appellate courts that adopted 

Krupski’s interpretation of the relation-back doctrine.

¶ 47 In sum, we answer the first certified question in the affirmative. The fact that original 

defendants remain as defendants in an amended complaint that adds a new defendant does not 

mean that the amended complaint cannot relate back under section 2-616(d). The focus in 
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analyzing whether a complaint relates back is not what the plaintiff intended to do when amending 

the complaint; the focus is whether the new defendant knew or should have known that, when the 

plaintiff filed the initial complaint, the plaintiff made a mistake in excluding him or her as a party 

defendant. 

¶ 48 B. Lack of Knowledge 

¶ 49 The second certified question asks whether a plaintiff's lack of knowledge regarding the 

identity of a potentially culpable party constitutes a mistake regarding that party's identity under 

section 2-616(d). Defendant argues that it cannot, claiming that a lack of information is not a 

mistake. 

¶ 50 Again, we find the answer to this question in Krupski and subsequent Illinois case law. In 

Krupski, the Court found that "a plaintiff's knowledge of the existence of a party does not foreclose 

the possibility that she has made a mistake of identity about which that party should have been 

aware." Krupski, 560 U.S. at 550. Specifically, the Court noted that a plaintiff who was aware of 

the identity of a prospective defendant, but was unaware of what role that prospective defendant 

played in the occurrence leading to the lawsuit, could be considered as having made a mistake 

regarding the proper party's identity under Rule 15(c)(1)(C). Id. at 549. 

¶ 51 This court has adopted that rationale. In Maggi, 2011 IL App (1st) 091955, ¶ 33, the court 

held that the plaintiff's lack of knowledge about which company served as the general contractor 

constituted a mistake under section 2-616(d). And in Borchers, 2011 IL App (2d) 101257, ¶ 52, the 

court, relying on Krupski, held that "a lack of knowledge about the identity of all of those involved 

in the alleged wrongdoing qualifies as a mistake concerning the identity of the proper party for the 

purposes of the relation-back doctrine." (Internal quotation marks omitted.) There, the court held 

that the plaintiff's failure to name the defendants in the first complaint was a "mistake" under 
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section 2-616(d) because it resulted from "her lack of knowledge about the nature of their 

involvement." Id.; see also Arthur v. Maersk, Inc., 434 F.3d 196, 208 (3d Cir. 2006) ("A mistake is 

no less a mistake when it flows from lack of knowledge as opposed to inaccurate description."

(Internal quotation marks omitted.)).

¶ 52 Krupski, Maggi, and Borchers answer this certified question. A lack of knowledge 

regarding a party's identity certainly may constitute "a mistake concerning the identity of the 

proper party" under section 2-616(d). 735 ILCS 5/2-616(d) (West 2014). Moreover, where a 

plaintiff is aware of a party's identity but is unsure about that party's involvement in the 

wrongdoing giving rise to plaintiff's cause of action, such lack of knowledge may also constitute "a 

mistake concerning the identity of the proper party" under section 2-616(d). Id. 

¶ 53 Defendant maintains that this court has been "unequivocally consistent" in holding that 

"lacking information as to a particular party's involvement in an occurrence does not constitute 

mistaken identity." Not only is defendant incorrect regarding our supposed consistency on this 

point (Borchers, 2011 IL App (2d) 101257, ¶ 52; Maggi, 2011 IL App (1st) 091955, ¶ 33), but the 

authority he cites to support that position is unpersuasive. Defendant again cites Pruitt and 

McCarthy as standing for the proposition that a lack of knowledge as to a party's involvement in a 

case does not constitute a mistake. 

¶ 54 As we explained above, Pruitt rests on shaky ground in light of Krupski, Maggi, and 

Borchers. The court in Pruitt said that the plaintiff had not made a mistake in not naming the 

owners of the building in the initial complaint because the plaintiff "simply lacked information of 

the [owners'] involvement in maintaining the Property." Pruitt, 356 Ill. App. 3d at 37. But that 

conclusion is untenable in light of Krupski, Maggi, and Borchers. We decline to follow Pruitt. 
No. 1-14-3173 

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¶ 55 And, once again, McCarthy does not support defendant's position. As we noted above, in 

McCarthy, it was reasonable for the fraternity to conclude that the plaintiff was aware of the 

fraternity's involvement with the decision to suspend him, because plaintiff had been a fraternity 

member and was likely to have been aware of its bylaws requiring the fraternity's approval of his 

suspension. McCarthy, 2011 IL App (1st) 092950, ¶¶ 38-39. Thus, in McCarthy, the plaintiff did 

not lack knowledge about the parties' respective involvement in the alleged defamation. McCarthy

does not stand for the proposition that a lack of knowledge cannot constitute a mistake. 

¶ 56 We answer defendant's second certified question in the affirmative. A plaintiff's lack of 

knowledge regarding a party's involvement in the wrongdoing giving rise to his or her cause of 

action may constitute a "mistake concerning the identity of the proper party" under section 

2-616(d). 735 ILCS 5/2-616(d) (West 2014). 

¶ 57 Certified questions answered; cause remanded.