Title: List of The Walking Dead (TV series) characters
Content:   Lori Grimes, portrayed by Sarah Wayne Callies, is Rick's wife, and Carl and Judith's mother. In the first season, Lori believes that Rick has died in the hospital from a gunshot wound, while the walkers are taking over, creating chaos and forcing Lori and Carl to run, under the protection of Shane. A few episodes later, they find out Rick is alive. When Rick reunites with Lori, this attracts the harassment of Shane who gradually becomes more and more hostile even when he knows that she is expecting a child of his. Eventually, Rick manages to learn about this event afterwards. From their escape from Hershel's farm to their endeavor to take up residence at a prison, Lori becomes increasingly estranged from Rick and Carl, which she blames on herself; she becomes worried about her baby's survival. In "Killer Within", when she goes into labor during an unexpected walker attack, Lori convinces Maggie to give her a C-section, despite the fact that it will prove fatal for her. Lori then dies giving birth and Carl is forced to shoot her to prevent reanimation; this breaks Rick into an emotional state.
Title: T-Dog (The Walking Dead)
Content:  Erik Kain from Forbes magazine found Lori's death especially difficult to watch, and was shocked by T-Dog's "sudden" death despite the fact that he "was never as prominent a figure" on the program. "As hard as these deaths were to watch," Kain wrote, "they also give me faith in the show." Even though he stated that T-Dog died "a hero's death", Michael Rapoport of the Wall Street Journal concluded that Lori's "gut-churning" demise was the more memorable. Ted Pigeon of Slant Magazine felt that the episode's "strong emotional undercurrents" were "a result of the sacrifice in both T-Dog's (IronE Singleton) final stand and Lori's decision 
Title: Lori Grimes
Content:  Lori Grimes is a fictional character from the comic book series The Walking Dead and was portrayed by Sarah Wayne Callies in the American television series of the same name. Created by writer Robert Kirkman and artist Tony Moore, the character made her debut in The Walking Dead #2 in 2003. In both forms of media, she is married to Rick Grimes. They have two children Carl and Judith. The character escapes the zombie apocalypse with Carl, and Rick's partner Shane Walsh. Believing her husband to be dead, she starts a relationship with Shane. For her performance as Lori, Callies was nominated for the Saturn Award for Best Actress on Television in 2010, and was among the cast members of The Walking Dead winning the Satellite Award for Best Cast - Television Series in 2012.
Title: List of The Walking Dead (comics) characters
Content: Series Lifespan: #2–48 Lori is Rick's wife and Carl and Judith Grimes' mother. During the Governor's second attack on the prison, she is shot by Lilly while holding Judith, whom she crushes after falling.
Title: Lori Grimes
Content:  the scene. He stated, "The Walking Dead really needs to work on strengthening its female characters, and it doesn't help when Lori has a major accident for such a stupid reason, getting distracted as she looked at a map while she drove. Yeah, yeah, there was a zombie in the road, but it could have been an animal [...] just as easily, and it really undercut the intended drama of her situation when it just seems so stupid that it happened at all." Zack Handlen for The A.V. Club thought that the foundation set up for furthering the storyline progression was contrived, while Aaron Rutkoff of The Wall Street Journal said that the 
Title: Stalker (The Walking Dead)
Content:  The episode features the death of Lindsley Register as Laura, who had been on the show since the seventh season, first appearing in the episode "The Cell".
Title: Laura (Fear the Walking Dead)
Content:  "Laura" is the fifth episode of the fourth season of the post-apocalyptic horror television series Fear the Walking Dead, which aired on AMC on May 13, 2018.
Title: Happy Death Day
Content:  but Lori attacks her. Lori admits to also having an affair with Dr. Butler, whose preference for Tree drove Lori mad with jealousy. In the ensuing fight, Tree stuffs the poisoned cupcake in Lori's mouth, then kicks her out a second-story window to her death. At a restaurant, Tree and Carter muse over the day's events and he offers her his room for the night. The next day, Tree wakes up believing she is still in the time loop, but Carter quickly reveals he was just playing a prank on her, and it is really the next day. Tree is too relieved to be angry at him, and the two kiss.
Title: Lori Grimes
Content:  as prominent a figure" on the program. "As hard as these deaths were to watch," Kain wrote, "they also give me faith in the show." Though he stated that T-Dog died "a hero's death", Michael Rapoport of the Wall Street Journal concluded that Lori's "gut-churning" demise was the more memorable. Lori's demise was featured in The Huffington Post list of "The Biggest 'OMG' TV Moments of 2012", and placed 19th in Slate article covering the year's most noteworthy television moments. Journalist Chris Kirk said that the segment was "utterly surprising", and pointed out that the writers beguiled viewers by shedding light onto Lori's crumbled relationship with Rick. In contrast, Zack Handlen of 
Title: Killer Within
Content:  "Killer Within" is the fourth episode of the third season of the postapocalyptic horror television series The Walking Dead. It originally aired on AMC in the United States on November 4, 2012, and was written by Sang Kyu Kim and directed by Guy Ferland. The episode marked Sarah Wayne Callies and IronE Singleton's final appearances as Lori Grimes and Theodore "T-Dog" Douglas and as regular actors on the show. Most television critics positively reviewed the episode, applauding its bleak undertones and the performances, but some commentators criticized the narrative ploys and the direction taken in the program. "Killer Within" was viewed by 9.27 million viewers, including 4.9% of those in the 18 to 49 demographic upon its initial broadcast in the United States.

Question: what episode does lori die on the walking dead?
Answer: "Killer Within".
Killer Within.