Chris Lockhart, the sole person of interest in his wife’s disappearance, was found dead Tuesday in his Portage, Michigan home. 
 
 According to a press release from the Portage Department of Public Safety, Chris’s death is being investigated as a possible suicide. Officers went to the Lockhart home shortly before 11:00 a.m. for a welfare check; Chris was wearing an electronic alcohol tether after being arrested for driving under the influence on July 17. 
 
 “Lockhart had missed his 10:00 a.m. report time and his tether indicated no movement for several hours,” the release said. “PDPS officers gained entry into the residence and located Christopher Lockhart deceased.” 
 
 NBC affiliate WOOD reports there were multiple police cars at the Lockhart home for hours on Tuesday afternoon. A medical examiner arrived shortly before 6:00 p.m. 
 
 Theresa Lockhart, Chris’s wife, disappeared on May 18, 2017. On Monday, Senior Deputy Police Chief of the Portage Police Division John Blue told Dateline Chris had not been cooperative with the investigation. 
 
 “He was not answering the questions, not providing us with any information,” Senior Deputy Chief Blue said. “It was pretty evident he didn’t want to cooperate, from the get-go.” 
 
 Chris did reveal to police, though, that he was the last person known to have seen Theresa. 
 
 “At about 6:00 p.m. on the 18th, we know Theresa left a gym [and went home],” Senior Deputy Chief Blue told Dateline. “The only information we got from the husband was she left the house again at 10:00 p.m. He didn’t say where she was going.” 
 
 The investigation into Theresa’s disappearance has included searches of waterways and wooded areas with “helicopters, canines, cadaver dogs, ATVs and kayaks.” It has also included four unrelated arrests for Chris. 
 
 Senior Deputy Chief Blue said crowds of media surrounded the Lockhart home this summer as the investigation into Theresa’s disappearance intensified, and neighbors began arguing with Chris about the street disturbance. 
 
 “The neighbor set up a camera system [aimed at the Lockhart] house,” Senior Chief Deputy Blue told Dateline Monday. “Chris went to snip the wires -- but didn’t snip all the wires -- so they had him on camera doing that.” 
 
 Chris was arraigned on July 7 on one count of interfering with electronic communications, a felony, and one count of malicious destruction of a building under $200, a misdemeanor. 
 
 Chris Lockhart 
 
 As a condition of his bond for the July drunk driving arrest, Chris was not to consume alcohol and wore a mandated electronic alcohol tether. On July 31, he was charged with damage of property for destroying the tether. Authorities also cited Chris with a violation of his bond. 
 
 “So you have this series of four arrests in sequence,” Senior Chief Deputy Blue said. “He is definitely spiraling there, in his whole set of issues, and he is a person of interest in this case.” 
 
 Theresa’s sister Joan Mullowney told Dateline Monday that she isn’t sure if Chris had any involvement in the disappearance or not. 
 
 “He was the last person to have seen her that evening,” Joan told Dateline. “[But] whether or not Chris did something to her, or was involved in something that he shouldn't have been involved in and she had to escape for her own safety… I don't know.” 
 
 The PDPS press release said detectives “are continuing to investigate the death and look for information that might provide assistance in the location of Lockhart’s missing wife Theresa.” 
 
 Theresa Lockhart is described as 5’5” tall, weighing 115 lbs. with brown eyes and short dark hair. Anyone with information on Theresa Lockhart is asked to contact the Portage Department of Public Safety at 269-329-4567 or Silent Observer at 269-343-2100 to remain anonymous. 
 
 Theresa Lockhart was previously featured in Dateline’s Missing in America series. ||||| The body of a missing Michigan teacher was discovered Tuesday, the same day her husband was found dead in their home. 
 
 After more than 100 days of searching, police recovered the body of Theresa Lockhart, a 44-year-old high school Spanish teacher from Portage, Michigan, who was reported missing in May. 
 
 The mystery of her death was solved after her husband, 47-year-old Christopher Lockhart, was found dead in their home Tuesday shortly before 11 a.m., according to the Portage Department of Public Safety. 
 
 Christopher was meant to report to the Corrections Division at 10 a.m. Tuesday due to his arrest in July from driving under the influence, according to NBC News. 
 
 Facebook 
 
 The department of public safety said he was wearing an electronic tag that had shown no movement for several hours. 
 
 Police responded to his home for a welfare check where he was found dead in the basement of his home from strangulation, said Portage Police Chief Nicholas Armold during a Wednesday press conference, according to WWMT. 
 
 Christopher left a note with a hand-drawn map indicating where police could find his wife’s body. 
 
 He also confessed to having killed her on May 18, and disposing of her body the next day in the Allegan Game Area, about 50 miles from their home. 
 
 Facebook 
 
 Armold said Lockhart “expressed remorse and asked for forgiveness” in the note, as well as explaining that the two had had an argument. 
 
 “In the note he indicated that he just ‘snapped,'” Armold said, referring to the reason behind Theresa’ murder. 
 
 The teacher was reported missing by her colleagues after she didn’t show up to work for two consecutive days. 
 
 “That was not normal,” Schoolcraft Community Schools’ Superintendent Rusty Stitt told PEOPLE in June. 
 
 Her husband was named a person of interest in the case, with Senior Deputy Chief John Blue telling PEOPLE at the time, “He hasn’t cooperated pretty much from the beginning — very little, if any.” 
 
 Lockhart reportedly wouldn’t allow the police to search the home he shared with his wife — leading police to serve him with a search warrant on June 7. 
 
 Theresa’s sister Joan Mullowney told The Huffington Post she contacted Lockhart when she heard the news about her sister’s disappearance. 
 
 “He wasn’t very forthcoming with information,” Mullowney said. “To be truthful, he seemed rather lackadaisical in his attitude … definitely not the attitude of a loving husband whose wife is missing.” 
 
 Mullowney said the couple met on an online dating website in 2006 and were married in 2007. 
 
 Jen Zimmerman, who went to college with Theresa and spoke with her the day before she went missing, told local news station WZZM that the couple had been working through some issues for the last few months. 
 
 “They were hitting a really rough patch,” Zimmerman said. 
 
 Other than teaching Spanish in high school, Theresa also taught a leadership class at the middle school. She contributed to after-school committees, including as the advisor to the school’s National Honor Society. 
 
 “She was well liked,” Stitt said. ||||| High schools are run on regimented schedules. The students arrive, the bell rings and class begins. 
 
 Except when the teacher doesn’t show up to class. 
 
 On the morning of Friday May 19, 2017, 44-year-old Theresa Lockhart didn’t show up to teach her first class at Schoolcraft High School in Schoolcraft, Michigan. 
 
 Theresa Lockhart Joan Mullowney 
 
 The day went on. No sign of Theresa at school. When the final bell rang for the day and the students were released to go home, the school grew worried. 
 
 “She was reported missing by school officials on May 20 because she didn’t show up and they were concerned about her,” Senior Deputy Police Chief of the Portage Police Division John Blue told Dateline. “Then an officer made contact with her husband Chris Lockhart on the 21st.” 
 
 Making contact with Chris proved to be harder than police expected. 
 
 “He was not answering the questions, not providing us with any information,” Senior Deputy Chief Blue said. “It was pretty evident he didn’t want to cooperate, from the get-go.” 
 
 Chris did reveal, though, that he was the last person known to see Theresa. 
 
 “At about 6:00 p.m. on the 18th, we know Theresa left a gym [and went home],” Senior Deputy Chief Blue told Dateline. “The only information we got from the husband was she left the house again at 10 p.m. He didn’t say where she was going.” 
 
 Joan Mullowney, Theresa’s sister, lives in British Columbia, Canada. She found out about her sister’s disappearance on Facebook. 
 
 Theresa Lockhart, left, with her sister Joan Mullowney, right. Joan Mullowney 
 
 “One of my cousins [saw] a Facebook feed saying something about Theresa missing. She called me and told me about it,” Joan told Dateline in an e-mail. “I was shocked and didn't really believe it at first.” 
 
 On Monday May 22, authorities located Theresa’s car in a parking lot about three miles from her Portage home. 
 
 “We secured the vehicle and processed it,” Senior Deputy Chief Blue said. “We started to conduct searches immediately around that area.” 
 
 As the investigation ramped up, authorities say they searched the nearby waterways and wooded areas, too, with “helicopters, canines, cadaver dogs, ATVs and kayaks.” 
 
 “We also conducted searches around the residence,” he told Dateline. “During the whole time, the husband was not cooperating with us, still.” 
 
 Senior Deputy Chief Blue said crowds of media began surrounding the Lockhart home, where Theresa’s husband Chris is still living. This is when Chris began having arguments with the neighbors about the street disturbance. 
 
 “The neighbor set up a camera system [aimed at the Lockhart] house,” Senior Chief Deputy Blue told Dateline. “Chris went to snip the wires -- but didn’t snip all the wires -- so they had him on camera doing that.” 
 
 NBC affiliate WOOD obtained access to that security footage. Because of this incident, Chris was arraigned on July 7 on one count of interfering with electronic communications, a felony, and one count of malicious destruction of a building under $200, a misdemeanor. 
 
 Since then, however, authorities told Dateline, Chris has been arrested three more times. On July 17, Chris was pulled over for drunk driving. 
 
 “They put him on an alcohol tether,” Senior Chief Deputy Blue said, which he explained as a “sophisticated GPS-type system” that monitors alcohol intake. “But he ended up destroying that, so he was arrested for damage of property.” 
 
 In addition, according to police, a condition of his bond for the July 7 arrest was that he not consume alcohol, so authorities cited Chris with a violation of his bond, as well. 
 
 “So you have this series of four arrests in sequence,” Senior Chief Deputy Blue told Dateline. “He is definitely spiraling there, in his whole set of issues, and he is a person of interest in this case.” 
 
 Chris Lockhart 
 
 “To be honest, I don't know if he has any involvement in her disappearance or not,” Theresa’s sister Joan told Dateline. “He was the last person to have seen her that evening, [but] whether or not Chris did something to her, or was involved in something that he shouldn't have been involved in and she had to escape for her own safety… I don't know.” 
 
 Joan said she certainly doesn’t “know Chris well enough to say if he is the kind of person to actually kill someone.” 
 
 “The first time I meet Chris was for their wedding 10 years ago,” Joan said. “Whenever Theresa and I spoke via Skype I'd sometimes see him pop his head into the room and say hello but I don't know Chris at all.” 
 
 Despite not being close with her brother-in-law, Joan told Dateline she did get in contact with Chris after finding out Theresa was missing. 
 
 “All he said was that she was missing and that the police was handling it,” she said. “I asked him what he was doing to help the search, and he just said that the police were equipped for searching for her. In other words, he wasn't doing anything which shocked me, since she was his wife.” 
 
 Joan added she has “reached out [to Chris] via messenger but since [his] arrests he hasn't contacted [me] back.” 
 
 In the five months since Theresa disappeared, police have searched her home twice, after finding evidence that allowed them to obtain search warrants. 
 
 “I’d love to elaborate on what we have, but it’s a fluid investigation -- revealing evidence could inhibit the investigation,” Senior Deputy Chief Blue told Dateline. “We do believe Theresa is deceased, because of the time that has gone by and the lack of proof of life; there has been no 3rd party communication, no tracking on credit cards, no tracking of anything.” 
 
 Joan told Dateline that wherever her sister is, she does not believe she went there voluntarily. 
 
 “Theresa would never leave like this for this length of time without telling someone. She'd worry that she was causing someone else to worry and she's not that kind of person to allow folks to worry about her needlessly,” Joan said. “She is well liked by her fellow teachers [and] students, as well as the church members at her church. She loved her husband and his two kids, so for her to take off and worry all these people is so not like her.” 
 
 Senior Deputy Police Chief Blue said Theresa’s case is open, ongoing and active. 
 
 “We have three detectives on it that are working simultaneously,” he said. “Some of these cases aren’t going to be solved right away.” 
 
 Theresa visiting her sister Joan in British Columbia, Canada. "I had just given her this doll that I had crocheted for her," Joan told Dateline. "It's a little student doll with backpack since she's a teacher." Joan Mullowney 
 
 While she waits for word of her sister, Joan seems to take comfort in her faith. And for the families of other missing persons, Joan has a message: “There is a peace beyond understand[ing] for those who trust in God during these hard times. Their loved ones will still be missing but they themselves will have an inner peace to help them. In John 14:27 Jesus says, ‘Peace I leave with you; My peace I give to you; not as the world gives do I give to you. Do not let your heart be troubled, nor let it be fearful. [This] is the peace that I have found to deal with this situation and that I want all those who have a loved one missing to have this peace as well.” 
 
 Theresa Lockhart is described as 5’5” tall, weighing 115 lbs with brown eyes and short dark hair. Anyone with information on Theresa Lockhart is asked to contact the Portage Department of Public Safety at 269-329-4567 or Silent Observer at 269-343-2100 to remain anonymous. ||||| PORTAGE, MI -- Police say the body of a woman found Tuesday afternoon in a wooded area of Allegan County is that of Theresa Lockhart. 
 
 Her husband, Christopher Lockhart, confessed to killing her and left a hand-drawn map to where police could find her body before he took his own life, police said during a news conference Wednesday afternoon. 
 
 The discovery of Theresa Lockhart's body and the suicide of her husband at their Portage home help bring a semblance of closure to a situation that had troubled members of the missing woman's family for more than five months. 
 
 Police and members of her family had been searching for the 44-year-old high school Spanish teacher since May 18 when she was reported missing by officials at Schoolcraft Public Schools. 
 
 Investigators with the Portage Department of Public Safety said information left by Christopher Lockhart led to the discovery of her body near Allegan. 
 
 Nick Armold, director of public safety for the Portage Department of Public Safety, said Christopher, who had been a person of interest in her disappearance, left a note which led police to find her body in a part of the Allegan Game Area about 50 miles from the couple's Portage residence. 
 
 (Watch entire Portage Police press conference) 
 
 "Not only did that (the note) contain a hand-drawn map, but also contained a written confession of the night of May 18," he said. 
 
 Armold said that in the note Christopher Lockhart admitted killing his wife after the two had argued. He said the man then disposed of her body in the Allegan Game Area. 
 
 Officers did not say how Theresa Lockhart was killed. 
 
 In a Wednesday afternoon, Oct. 25, press conference, Armold said Lockhart died of strangulation by hanging himself. They said officers discovered his body in the basement of his home. 
 
 "He did express remorse and asked for forgiveness," Armold said, referring to the note left by Christopher. He did not provide details. 
 
 John Blue, senior deputy chief of Portage Public Safety, said officers believe Christopher Lockhart may have died up to 30 hours before he was found at 10:48 a.m. Tuesday. 
 
 Allegan County Sheriff's deputies searched part of Allegan County's Valley Township on Tuesday afternoon and found a woman's body that appeared to have been fully buried at one point but was partially uncovered due to heavy rain. 
 
 Undersheriff Mike Larsen told reporters that the body appeared to have been buried for quite some time and there was a significant amount of decomposition but no obvious wounds. 
 
 Armold confirmed that information at Wednesday's press conference.
– For nearly half a year, police in Portage, Mich., had searched for a beloved high school Spanish teacher who seemingly vanished in May. Her body was finally discovered this week—but it wasn't the first one officers came across. Officers initially found Theresa Lockhart's husband, Christopher Lockhart, dead of a suicide in the couple's home around 11am Tuesday after he failed to arrive at court to face a charge of drunk driving, reports NBC News. Police say a note discovered near his body described how the 47-year-old had killed his 44-year-old wife on May 18 and disposed of her body 50 miles from their home. Also included was a hand-drawn map, which led officers to Theresa's partially buried body later Tuesday, reports People and MLive. Christopher Lockhart, who died of strangulation by hanging in his basement, wrote that he "snapped" when the couple argued, said Portage Police Chief Nicholas Armold at a Wednesday press conference. Armold didn't mention how Theresa died—her body reportedly showed no obvious wounds—but noted her husband "did express remorse and asked for forgiveness" in his confession. Authorities had previously named Christopher as a person of interest in the case after he failed to report his wife missing before her colleagues. Police eventually searched the couple's home using a search warrant on June 7. A day before the couple's bodies were found, a Portage police officer told Dateline that Christopher hadn't been cooperating with authorities but claimed to have last seen his wife when she left their home at 10pm on May 18.