O.T.I.S.
Veteran
Nah, because she was trying to teach the girls to change like her and even though they killed zombies (or at least in reference to Mika) they still didn't change their opinions about killing...Them girls got her some humanity back cause she saw how bad it can get. Thats why she broke down and confessed to Lord Tyree.
Her sister was just bat-shyt crazy, forcing Carol's hand. Lord Tyree on the other hand, could've offed her but didn't even though Carol expected him to. They both had to make some tough decisions in this episode