Does he go back to rehab? What do they tell him? One day at a time, think of everyone you are hurting, we’re here for you. But he hurts NOW, and none of this reduces that.
He had something on the order of 50 bags in his apartment, and 20 used needles. He was on a massive pain killing binge.
My dream is to create places where one day people like him have somewhere to go–in the middle of a figurative or literal night, in the middle of a figurative or literal hailstorm–and where they can get actually effective help. This has to do with worldview (hope relies in part upon structures you believe in which do not contradict any facts you know), with people possessing emotional empathy, and with therapeutic techniques that actually WORK.
He was a bright guy, and no doubt decided no shrink was going to help him, and that if he gave up drugs he would lose his best and only true friend. Small wonder his friend killed him.