Did you try confront him with his antisocial issues and how did he respond?

Have you explored options of kicking him out by yourself, like do you have any physically fit male friend to invite over to talk to him??

I'd stay away from police for now because who know's maybe he'll flip once they are out the door.

Out of curiosity how did it go with him when you first met? Did you have enough time to get to know eachother somewhat?

Does the guy do drugs and more importantly keep them in his apartment?

Some people are unable to solve or speak out about their issues and cope by being toxic assholes but I'm always curious how this occurs with stranger roommates. Any hints on what could be the root cause of his behaviour?