Episode 66: The Monster of the Mangones.
The Monster of the Mangones was the name given to an unidentified Colombian serial killer who, between the 1960s and 1970s, murdered between 30 and 38 preadolescent and teenage boys in Cali. The killer's modus operandi consisted of inserting needles into the heart and thorax, assaults, rapes and torture. It is believed that he used syringes to draw blood from his victims.
