Samuel Little targeted vulnerable women, telling investigators, “I’m not gonna go over there in the white neighborhood and pick out a little, young teenage girl.”

Runs April 9-20 with back-to-back premieres, including new specials “Catching a Serial Killer: Sam Little” and “Snapped: Notorious Hollywood Ripper.”

During his expansive interviews with investigators, Samuel Little said he lost count of his victims after 84.

Serial killer Samuel Little confessed to murdering 93 women in a series of shocking taped interviews with the FBI.

From Ted Bundy to the Hollywood Ripper, Oxygen's "deadliest event" in true crime history will cover some of the most notorious serial killers.

From Ted Bundy to the Hollywood Ripper, Oxygen's "deadliest event" in true crime history will cover some of the most notorious serial killers.

“Little has confessed to 93 murders, and FBI crime analysts believe all of his confessions are credible,” the FBI says.

Serial killer Rodney Alcala, whose total victim count is unknown, posed as a fashion photographer to gain access to young women.

Dennis Rader had two children — a son and a daughter — before his arrest and kept up the facade of a normal family. 

"We are hoping that someone - family member, former neighbor, friend - might recognize the victim and provide that crucial clue in helping authorities make an identification," authorities say. 

With calling cards and signatures, these serial killers let the world know they were behind some of the sickest crimes imaginable.

When sex workers in Dallas, Texas started showing up dead with their eyeballs missing, terror spread through the neighborhood, until a carpenter with a fondness for taxidermy was identified as their serial killer.