I’m sorry for your loss. Losing a pet is always hard, I can’t imagine how you must have felt after your cat was killed. The fact that this behavior is rare in Pitbulls does not make what happened any less painful, but I hope you will not judge the entire breed for this tragedy. Please pardon any impression that I’m making light of your loss, that is not my intent. For whatever it’s worth, if anything, I offer my Sincere Sympathy. BTW getting a response to anything here can sometimes take awhile, we all have different schedules, so hang in there.