My roommate has been trying to break into my room

I’ve been living in hell these past couple months, my roommate who is a 50 year old man has been at my neck non stop. I replaced my locks 2 weeks ago because he keeps entering my room. Today I noticed these on my room door, these are clearly knife marks. He won’t leave me alone and idk why. He has Bpd and other mental issues and this is honestly scaring me. Literally yesterday I had to call the cops because he threatened to hurt me because I covered the cameras he has in the living room because I feel so uncomfortable. There’s 3 cameras in one common space, he’s absolutely fucking bat shit crazy but that’s a different post. I have a camera in my room but it’s not always on but now I’m going to keep it on 24/7