Member fought with underage female guest in his room

I was sleeping on my day off in my room and was woken up by loud bangs and screaming from an adjacent room . I heard a girl crying that she was hit by the member so I called the police . The member ran out the room and into the front yard pacing back and forth threatening me for calling 911. Out host sent him a notice to vacate immediately and he did leave that day . Is he aloud to come back and live at the home the next day ? I don’t see how he could come back and live here like nothing happened after the host gave him a notice to leave violating the rules by having guests and threatening roommates . I have video aswell that I sent for proof of the ordeal .