Shooting? Beheading? Poison gas? Electrocution? Drawing and quartering? Boiling? Burning alive? Peine forte et dure? Sawing in half? Throwing to the lions? Lethal injection? Radiation overdose? Carcinogens? Hardened arteries? Cirrhosis? Throwing him from a high place? Staked out on an ant hill? Old age?

There has to be SOME legal way....