As for what I think should have happened to Sakaki? Well, you ever see that scene in "Scanners" where the dude's head blew up? Or at the very least reduced to a greasy smear on the side walk by the friends and family of those he made into lost ones. Go Freddy Krueger on his ass.
Take every single death in a horror movie, game, urban legend, story, ect and put Sakaki's mind in a simulation that plays through them ALL for the rest of his natural life.