"It does seem to me that cops, especially two on one, used to try and take guys like this down without killing them."
Not a guy wielding a club who attacks two cops with guns. Obviously, his problem is not going to be stopped with persuasive words. Plus, if he gets one of their guns, he's now a kook with a gun instead of a club.
After being hit with pepper spray. The guy in the next trailer describes him as completely out of control. I'm guessing the autopsy shows he was on something.