who killed a cop?

so my friend of about 10 years, whom i had lost contact with, turns up in the newspaper for killing a game warden. two hours of chase ended with a cemetery shootout outside a town with barely a name. he was shot once upon getting out of his truck, returned fire with an AK-47, emptying the 30-round clip. the cops then dropped him with another one in the chest. now he's in jail, soon to be on death row. he had time to think about his course of action when he stopped, and he CHOSE to get out of the truck armed. for what? why? there probably isnt a solid answer. movies? drugs? video games? nope. he wanted to go out like this. he's probably pissed that he didnt get more of them, angry that he's not dead too. anger. i think that sums it up. too much anger without knowing the source.