Sandpuddle

this is her backstory for when she became a killer cat so what happened was she was walking through the territory (ThunderClan) with her mate Stormwing (he was secretly cheating on her with her sister) till she saw Bone a loner that was kicked out for making mates with a loner who soon died by a fox attack and Bone was killing a cat in front of her and Stormwing when Bone noticed them he quickly ran away and they both tried chasing him but they didn't get the chance as they were right in front of the body Stormwing backs away in horror and Sandpuddle puts her paw on the blood of the dead cat before a warrior walks over to see them both as the warrior looks in horror so he ran back as they both chased him down getting back to the camp he told the leader but he saw which was a whole entire mistake she tries to explain herself even saying that Stormwing saw everything that happened with her so basically he was a witness but he denies it lying to the clan saying that she did it and he was too afraid to do anything because he was scared that she was going to do the same thing to him which was a big lie