Authorities in Sioux Falls, South Dakota say they have a person of interest in custody and there's no threat to the public after Pasqalina Esen Badi was found slain.
Ottis Toole was long linked to the 1981 killing of Adam Walsh, which he confessed to only to later recant. He reportedly admitted to it one final time on his deathbed.
Henry Lee Lucas claimed he killed over 600 people — but Vic Feazell was instrumental in disproving that, as shown in Netflix's docu-series "The Confession Killer."
