I had an idea of how Pete's story would play out in the tv series, I think it would be similar but some major differences
Same thing happens Rick thinks that Pete is abusing his family, but instead of informing Michonne of his suspiscons in the comic, he reveals his suspicions to Carol who was abused by Ed, but she brushes it off, but after Rick leaves, we can tell she is sad and angry
Then when rick attacks Pete, Carol detains him, and give him to the leader, she says to pete "If you are hurting your family, I will end your goddamn life!" which scares him.
Then when He trys to kill rick, he cuts reginas throat then rick and him are fist fighting, then Carol kicks his knee, and stabs him in the chest, then she beings tell him about her husband and how he raped her daughter and beated her and she won't allow "Pieces like shit" like him to live, then she snaps his neck.