Fred, I am betting ( no great brain power used here) that the guy is certifiably crazy. Heck we had a guy kill his girl friend, her kids and then went across town to kill some guy he knew. It blew away the cops, bodies all over town. This happened a few weeks before 9/11/01. He plead guilty and it all went away, no explanation. That is a sure sign he was nuts!! Anyhow. These terrible things happen. I feel terrible for the poor people on the bus and the victim. A lot of therapy. Eric