The Top Killers For Each Season Of ‘The Walking Dead’ Explained With Helpful Infographics. wait didn't Carl kill his mom before he turned then that kid after the first prison raid by the governor. so that makes 2 human kills
To be honest, I think she thought about her sister but had already accepted that she was dead. Now Glen is something that she could set her mind to and work towards instead of accepting that he was dead. Just my thoughts.