That sucks. I heard of a person having their identity stolen by someone but not realizing it for years til he went to buy a house. The loan people told him he already had a house and a !oan for it. Turns out the person who stole his identity bought a house and kept paying all of the bills associated with the house with their own money for years. The theft just wanted to buy a house but couldn't with their credit score.
Anyway, you should talk to the cops.