How is this guy still alive??!!

Dude practically snorted ALL the coke in Hollywood in the 70's and early 80's. He was involved in a premeditated murder plot, lost his beloved Hollywood mansion before Jack got it back for him. He's had several strokes over 20 years ago but now he's almost 90 and still kicking it..I mean..walking it.
Probably him and Jack will check out within month's of each other.