The Monster of the Mangones is the name given to an unidentified Colombian serial killer who, between the 1960s and 1970s, murdered between 30 to 38 preadolescent and teenage boys in Cali. Believed to be a native of the city, he would kidnap and later kill most of his victims in various remote vacant lots. At the time, it was the most notorious criminal case in the country's history. For some, the Monster was a simple myth or legend, while others believe that he actually existed, later earning comparisons with Luis Garavito.