Three master manipulators. Each committed acts of unspeakable evil...Taylor Helzer orchestrated brutal murders in the name of God. Sylvia White killed anyone she felt was in her way...including her four-year old stepson.

Control freaks seek to gain power through murder. Ronald Gene Simmons was a mass murderer who killed 16 people. Richard Angelo was a nurse who poisoned patients to save them. Billie Wayne Coble was a domineering father, and murderer.

Anything can set off a rage killer. Gerald Stano craved the company of women but lashed out when he felt he was being mocked. When Robert Lopez found a girlfriend, he flipped a switch between obsessive love and blind rage.

Stone cold killers attack without a moment's hesitation. Maksim Gelman stabbed random strangers throughout New York City. Henry Lee Lucas was a barbaric necrophiliac who claims to have killed hundreds. And Joseph Paul Franklin killed at least 15 people.

Sexual deviants are aroused by the act of murder. Gerard Shaefer was a trusted policeman who bound, raped and murdered his victims. Richard Hooten was a serial rapist who went after his neighbors. And Wayne Adam Ford killed at least 4 women for pleasure.

Fantasy killers imagine every aspect of their crime in detail. Daniel Conahan lured men into the woods to torture them. Angela Sanford killed as part of a satanic ritual. And Harvey Robinson stalked women, then raped and strangled them in their homes.

Deceptive killers walk among us wearing a mask of innocence. Everyone thought janitor Kendall Francois was a gentle giant... until police found the eight bodies he'd hidden. Doyle Kelley was convicted of murdering his first...and second wives.

Ego Maniac killers think only of themselves, and thus commit egregious crimes without remorse. Truck driver Robert Rhoades raped and tortured hitchhikers in a specially designed chamber in the back of his cab.

The attention-seeking killer commits crimes for the spotlight it incurs. George Russell boasted of his importance, ultimately killing the women whose attention he could never get. Eddie Seda jumped on the coattails of the famed Zodiac killer.

In the wild, a predator instinctively knows: eat or be eaten. For predator killers, murder is just as natural. Jack Spillman proved his bestiality by drinking his victim's blood. Levi King ambushed a sleeping family with an AK-47.