There is this guy in my family my age and i just caught him stabbing a cat. I knew he would kill animals because he showed me before and told me about it. Not only does he abuse animals but he will hurt people too sometimes, like for example if someone did something he didn’t like he would get back to “get equal” with them. He steals and also abuses drugs. I know this because he walked in on me smoking with my friends before and he wanted to join in so we let him and later we got to talking about smoking and stuff but like, he doesn’t just smoke weed. He does alot of other hard core stuff like cocaine meth and opiates. (This is also important to remember it will come together in a bit). Now to the part where this makes it bad for me. I always felt guilty about knowing of his animal abuse and drug abuse and all the bad stuff he did. But i remember once he told me if i was to ever tell anyone he would tell them about the time i was smoking weed. Or make up a lie like i was talking to people way younger. And there is nothing i can do to be honest. We go over to his house often since he isnt far from us and our families always host events. I dont like him but i dont know how to not keep feeling horrible over it and i wanna know what i can do. Please help.