Someone call the Police, he's going to kill me!

The Friday before Valentines day in the morning the front door to the office flies open and it's Chevrolet screaming "Someone call the Police, he's going to kill me!".  Her arms are flay-ling above her head and her purse goes sailing on to the couch.  She is yelling and is struggling to breath as she paces around from one room to the next repeating "call the Police, he's going to kill me".  Stretch and I look at each other, she is a little more upset this time than usual.  I ask repeatedly "Chevrolet, who are you talking about?"  "I can't call the police without knowing who your talking about."  She will not say.  Stretch and I open the office door and look outside, the courtyard is empty.  She is still moving around the office and clubhouse at full speed saying "he's going to kill me!"  She then asks to use the office phone to call her mama.  She steps from the lobby into my office to use the phone.  Then the front door of the office opens with such force I thought it was coming off for sure.  There stands a large muscular black man.  He looks past me and say's "Chevrolet, what the f*ck are you telling these guys?"  Now she is back to screaming at full volume.  I have seen this guy around the property over the past few weeks.  He comes into the clubhouse with one of the tenants to workout on the free weights.  He is covered with prison tats and is just plan tough looking.  He is in his mid 20's.  He is now trying to get past me and I keep moving back and forth to block his path.  He keeps saying "I just want to talk to Chevrolet".  He is being very aggressive and obviously angry.  He get tired of the dancing pretty quickly and makes a move to get around me.  He is heading into my office and I grab his coat where it buttons together at the chest and together we come to a stop when I hit the unopened half the the french doors to my office. I come to a stop and that spins him around to make him face me and he is loosing his balance.  He falls back on the office chairs and make eye contact with me for the first time.  I let go of his coat with my right hand a place it around his neck and get a good grip.  There was a little look of surprise in his eyes and I told him he is leaving my office now!  As he starts to regain his balance Stretch how has a hold of him too.  We stand him up and start pushing him backwards towards the door.  He makes another attempt to get by us and now pictures are coming off the wall and flyers, pens and business cards are flying everywhere (don't forget about Chevrolet screaming).  We push him back to the door and I keep telling him he need to "calm down, just go outside and calm down."  We now have him half way out the door, he is holding on to the door jam with both hands.  Then I see behind him is another black guy approaching.  I'm thinking, oh great!  This guy comes up and grabs the first guy buy the shoulders and tells him to calm down and just leave.  Finally, he complies and lets go.  I shut the door and lock it.  Then I call the Security guys and the Police.  Chevrolet is on the phone with her mama. She is telling her she can't tell the police who he is because he just got out of prison and is on parole, he is a gang-banger and he will just have her killed.