Clem is a killer.
Becca, alvin, luke, nick, pete, carlos, sarah, she brought dead to all of em. when she came to them for help, all their troubles started. take not that ALL of the original group of season 2 died. maybe if clem hadnt bumbed across them they would live? idk
but basically, their blood is on her hands. because of her, they had to leave their house and all die