Ok, so they can't sue the city because the city did not forsee his actions. But what's stopping them from suing him?? Granted, you can't get blood from a turnip, and cops don't make much money, but surely they can get something out of him. I imagine he owned a home and other assets, so they can bankrupt him, right? While I don't agree with the litigious nature of our society, I do feel that people should be held responsible for their actions. In this case, the guy started the fire, therefore, he's responsible for the damage.