You do not need to do anything. You as a citizen, cannot prosecute the case. You probably can sue him in small claims court and also seek a restraining order.
Insufficient amount of facts to guess whether or not you could sue the complex, and stand a chance of winning.
absent more than a bloody nose and a trampled ego [broken nose, teeth, scars, etc.], this sounds like no more than a very small case.
The above is not intended as legal advice. The response does not constitute the creation of an attorney client relationship as this forum does not provide for a confidential communication.
You have the right to appear in court, testify and hopefully justice will be done. You can sue him, however, even if you win your probably not going to collect anything. I do not believe you have a case against the housing authority.
Here is a link to the Washtenaw County Prosecutor's Victim Roghts Handbook: http://www.ewashtenaw.org/government/prosecuting_attorney/VR%20Handbooks
James Regan, LL.M, Esq.
The response given is not intended to create, nor does it create an ongoing duty to respond to questions. The response does not form an attorney-client relationship, nor is it intended to be anything other than the educated opinion of the author. It should not be relied upon as legal advice. The response given is based upon the limited facts provided by the person asking the question. To the extent additional or different facts exist, the response might possibly change. Attorney is licensed to practice law only in the State of Florida. Responses are based solely on Florida law unless stated otherwise.
You have the right to testify as to what happened and the right to speak at the offender's sentencing if he is convicted. The prosecutor's office/court are required to notify you of the sentencing date. As for witnesses, the prosecutor should have decided who will be called as a witness when he/she wrote the warrant and began preparing for the trial. If you believe that there are witnesses that the prosecutor is not aware of then you should contact the prosecutor's office and make them aware. You won't likely need character witnesses as your character traits for specific acts of violence are not admissable with respect to a self-defense claim and it sounds like the defense to this will be self-defense. Good luck.