Not the psychotic ones, they’ll kill more people than they’ll birth. They did a pretty solid job through the season establishing that Lizzy had a couple of screws loose. First we found out she was naming the zombies, and not nicknames like the fans give them, people names. Then we found out she was feeding them, and her feeding of them caused them to accrue to destructive effect on the fence. Then they imply to us that she’s mutilating small animals, so there’s some serious serial killer tendency there. Then she sacrifices her sister to “prove” that zombies are people. In a world without psychiatric hospitals there’s only one way to deal with somebody like Lizzy.
Don’t forget...she was busy smothering Judith when Carol came upon the girls. and knifing little rabbits. ugh