Nothing sad about it, it's his own doing. He's living his life the way he wanted, no one forced him to drink, many people chipped in for his rehab and bent backwards to help him only for him to let them down and fall down on his arse again.
A bit like George Best, waste of a donors liver, which could and should have gone to someone who is in a predicament through pure bad luck and not self induced from an arrogant life style.