I am the 5th person in my complex who has gotten their laundry stolen and we know who did it.?

Nobody has actually seen him do it but he has a long history of stealing over the years. in fact, two years ago when i first moved in and did not know better i enlisted him to help me move in and he in turn sole a bunch of my stuff and lots of my ex-husband's clothes. i called his mother and went to his house and threatened to have him arrested and it must have scared him because all of the sudden my stuff showed up in a box on my doorstep. this time he stole two loads of my laundry which included 10 pair of designer jeans and i filed a police report for "grand theft". there are four other tenants in my building who have also gotten their stuff stolen and i am not sure if they filed police reports or not. i left a note on his door and a message on their machine demanding the return of my laundry and now they are threatening to file a restraining order against me. the homeowner's ociation had a two hour meeting with his mother about the back dues she owes and the papers