what happened to lizzie on the walking dead
Lizzie and Mika Samuels In the episode "Inmates", Lizzie, Mika and Tyreese are shown to have escaped the prison with Judith. Lizzie kills a group of rabbits, and during a walker attack she covers Judith's mouth to try to stop her from crying but nearly smothers the baby. Carol finds the children, and then takes them to Tyreese. In the episode "The Grove", they come to stay at an abandoned farm with a pecan grove. Lizzie shows great distress when walkers are killed and Mika is unwilling to toughen up and become hardened, due to her compassion for others. Lizzie believes that walkers are "just different" and that they want her to "feel the way they feel" rather than kill living humans, but Mika reassures the adults that she is not like her sister, and understands that walkers are dangerous. Carol and Tyreese come back to the farmhouse after gathering food in the woods and they see that Lizzie has stabbed Mika to death and plans to do the same to Judith. Lizzie tells Tyreese and Carol that she has spared Mika's brain so that she will come back as a walker, and asks them – at gunpoint – to leave Mika's body alone. Carol later kills Lizzie after taking her outside to "look at the flowers" to distract and calm her. Tyreese reveals that Lizzie had admitted to being the one at the prison who fed rats to walkers at the fence (as seen in "Infected") and who dissected the rabbit that Tyreese found in the tombs (as seen in "Too Far Gone").
Carol Peletier In the episode "Inmates", Carol reappears unexpectedly, saving Lizzie, Mika, and Judith from a pair of Walkers in a forest. She returns the children to Tyreese and tells him that she saw the prison fall, and, after losing sight of him and the children, managed to catch up with them. Sensing that Tyreese does not know of her involvement in Karen's death, Carol makes up a story about how she did not return with Rick because she wanted to find more supplies for the group. Later, after taking the advice of a man who had been bitten on the side of the road, she follows Tyreese and the children as they to travel to a sanctuary named "Terminus." In the episode "The Grove", Carol and her group take a break from following the train tracks to Terminus, and find a house in the middle of a pecan grove. Carol is concerned that Mika is too gentle to survive, and that Lizzie is confused about the nature of walkers, thinking that they are still people. She continues to teach Lizzie and Mika lessons of survival, despite the girls remaining adamant to surviving in their own methods. Carol and Tyreese later return from a hunting trip to find that Lizzie has killed Mika and was about to kill Judith, thinking that everyone would understand that Mika was just a changed person after reanimating as a walker. Viewing Lizzie as too dangerous to be around other people, Carol and Tyreese discuss Lizzie's fate, and Carol executes Lizzie by shooting her in the head. Afterward, Carol confesses to Tyreese her role in killing Karen and David. Tyreese is furious, but he forgives Carol for what she did, although he says he will not forget. After burying the two girls' bodies, Tyreese, Carol, and baby Judith restart their trek toward Terminus.