The superficial self-inflicted wounds, plus getting out of the SUV at the last minute, would lend credence to the theory that he didn't want to live, but he didn't really want to die, either. In other words, he couldn't sh-- OR get off the pot.
I don't think his court-appointed lawyers will be successful in supressing anything he said to the police before he was arrested.
I hope not, but as you might be able to tell from some of my comments, I don't have much faith in our legal system here in California.