Sew his eyelids open so that he can watch all of this:
First you set him ablaze. After he has literally been burnt to a crisp and his plasma and blood is literally boiling, take him to the Marianas Trenches and scuba dive to the bottom with him. While he is under that water down there and drowning, start taking an icepick and jabbing at the burns. Before he loses all consciousness, swim him back to the top. Take him back to shore, then start pouring boiling water on them. Then what you do, is inch-by-inch, remove his epidermis with a meat carver. After that, start cutting ripping off each fingernail and toenail, one by one. Then cut off each toe and finger. Then, rip out his tongue and slice off his ears. After that is done, jab icepicks in his eyes and yank out the eyeballs. Fill his eye sockets and open wounds with maggots and piss ants.
After that is all said and done, put him in a tub of electric eels as he dies.
GOD DAMN I'M MORBID!
First you set him ablaze. After he has literally been burnt to a crisp and his plasma and blood is literally boiling, take him to the Marianas Trenches and scuba dive to the bottom with him. While he is under that water down there and drowning, start taking an icepick and jabbing at the burns. Before he loses all consciousness, swim him back to the top. Take him back to shore, then start pouring boiling water on them. Then what you do, is inch-by-inch, remove his epidermis with a meat carver. After that, start cutting ripping off each fingernail and toenail, one by one. Then cut off each toe and finger. Then, rip out his tongue and slice off his ears. After that is done, jab icepicks in his eyes and yank out the eyeballs. Fill his eye sockets and open wounds with maggots and piss ants.
After that is all said and done, put him in a tub of electric eels as he dies.
GOD DAMN I'M MORBID!