Sharon~
I know that it hurts. You are doing the right thing to ask him (tell him) to leave. You are absolutely right that you don't owe him a reason. Your house, your choice.
The pipe and the actions sound as if he is using meth. It is a crazy scary drug. Anyone using this drug who already has violent tendancies can not be trusted not to hurt someone. I wouldn't even make an appointment to have him come pick up his stuff. I'd rent a storage facility for a month (about $45) and find a way to get the combination to him. I would be really worried about violence against you or particularly against your easy child if he came to your home.
Good luck, and be good to yourselves. Make sure easy child knows that you are serious when you say that she has to call the police. She should not tell 911 that it is her brother. Let them sort it out when they get there. You could also get a restraining order. That would make things much easier if the police need to be called. They can't delay if you have one.
