I had a VERY serious life threating problem that went on for months. He didn't key my car, but he stole a great deal of my things, threaten my life, assaulted me, and stalked me all over from work to the store, to the court house, even almost to home.
Finally the guy gets arrested for something not even related to me, but I had talked to the police soo many times agout him. He'd been arrested several times before I was unfortunate enough to meet him. I end up moving further away a second time, and started buying firearms. A few years go past, I forget about the scumbag. Then I got a message on my answering machine from him: "AARON, IS THAT YOU? YOU PIECE OF #$%! YOU'RE HIDING OUT IN LIVERMORE? I'M GOING TO FIND YOU!!!" *slam*
He will get out of jail, and no, he's not going to change. Infact he might be even more pissed off at you, and he might even try to cause harm to you.