Not unusual with necrophiliacs is cannibalism. Dahmer claimed that he ate the flesh of his victims because he believed that the people would come alive again in him. He tried various seasonings and meat tenderizers to make the human flesh more tasty. Eating human flesh gave him an erection. His famous freezer contained strips of frozen human flesh. He had tried human blood too, but it did not appeal to his taste buds.
Like Ed Gein, he tried to perfect the art of preservation and taxidermy so that he could practice the state-of-the-art techniqiues on his victims.
Control was an all important issue for Dahmer. He could not tolerate rejection or abandonment. Even in his homosexual relationships, he did not want to please his sexual partner; he just wanted to have his own pleasures. Pleasure to Dahmer meant performing oral or anal sex on his partner, whether alive or dead.
This absolute need for control led him down some pretty weird roads. One of them was a kind of lobotomy that he performed on several of his victims. Once they were drugged, he drilled holes in their skulls and injected some muriatic acid into their brains. Needless to say, it caused death right away in a few victims, but one supposedly functioned minimally for a few days before dying.
Not surprisingly, his need for control led him to dabble with Satanism. In fact, just having the bodies of his victims around him made him feel "thoroughly evil." "I have to question whether or not there is an evil force in the world and whether or not I have been influenced by it. Although I am not sure if there is a God," Dahmer said," or if there is a devil, I know that as of lately I've been doing a lot of thinking about both." He had plans to create a shrine in his apartment, featuring all of his trophies, his statue of a griffin, and incense burned in the skulls of his victims, so that he could receive "special powers and energies to help him socially and financially."