Need help. One non tenant is abusive.

[Hien T Pham]

Help me guys. 

I am manager of a small Apartment complex.

One guy,  gangster, in and out of prison, has left his wife to go to stay with his mother, who is one of my tenants. 

He uses the garage to hang out. Throwing trash, bottles, occupying my parking space. 

He beat me up once in the laundry room. I came out ok. Basically, we go back and forth about leaving the laundry room door open while using it. But he was high, he jumped out the window, came back to the front door, and pushed me inside, shut the door, locked it, turned off the lights, and stared punching. Weak punches. I blocked most of it. His mother was so embarrassed. She is now going to the court to kick him out. 

He uses the garage and the laundry room to hang out. And I believe he sleeps in the car, occupying my space . 

I didn't report the incident. 

but now we found some human poops in the garbage can in the laundry room. 

How to kick him out faster?

I regretted not reporting to the police that night.

 When I was able to open the door he was saying like "please don't beat me up" like he was a victim, in front of everyone who heard my screaming and and rushed to to the front door. 

Can I shut off the electricity in all the garages?

he is not on the lease. His mother told him to leave but he would not, and so she is going through this with the court, she said.