If I remember correctly, he died unexpectedly of a heart attack in prison back in 1991. There was a bizarre film of him in prison just prior to his death; he appeared to be partying with some other inmate and he was bare chested in the film, mugging and laughing at the camera. The wierd part was the fact that he appeared to have developed women's breasts, so to speak. There was speculation he was taking female hormones or some such thing. A strange, freaky, perverted and twisted man. I do remember one of the dead student nurses father, Matuszek, swore he would never live to see another day if Speck got out of jail. He never did. The rest of the article does speak squarely as to the reaction in Chicago; the whole atmosphere changed, as if whatever innocence was left in Chicago, had truly gone. A bizarre occurence.
Speck had some problem like a malformed or extra chromosome. It affected his skin--he had extremely bad acne--and possibly his disposition. He should have been executed. The only possible motive is that one of the girls was a ringer for his ex-wife.
From
http://www.mayhem.net/Crime/murder1.html
about two-thirds down the page
"In May, 1996, five years after his death, a pornographic video made secretly in prison began airing on Chicago's WBBM-TV showing the mass murderer wearing woman's panties, doing drugs, having sex and bragging about living the good life at Stateville prison. A total embarrassment for Illinois lawmakers, the tape, believed to have been shot in 1988, shows Speck handling $100 bills and casually snorting from a huge pile of coke. At one point he says, "If they only knew how much fun I was having in here, they would turn me loose."