he got killed by his own hubris, when he was diagnosed with a rare pancreatic cancer, PNET. it was treatable, but he went on a fruit diet to treat it, and plus he paid to be on the top of a list of A LIVER transplant only to waste it with his "fruit diet" it allowed the cancer to spread and kill him. this pancreatic cancer is rare , unlike the common this is much more tretable and slower growing, while the normal ones are usually more aggressive(adenocarcinoma vs PNET) AND USUally ad advanced stage when discovered in patients.