Sorry to hear about this person and how he has treated you Savaj..I
It is against the law and against the LL TOS to distribute any information of RL nature about another individual unless he/she has given consent to do so. (its known as the privacy act unless you are FBI, CIA, or Homeland security etc)
Second I would suggest doing as the others have said and contact the authorities with all the information you have..and to also look into why LL has not done anything to help you rectify this situation...being within SL is 1 thing but when RL boundaries have been overstepped, then LL should be held accountable also.