Fredy Armando Valencia Vargas (born 1982), known as The Monster of Monserrate, is a Colombian rapist and serial killer.
[3] According to Carlos Valdés, the then director of the National Institute of Legal Medicine and Forensic Sciences, Fredy Valencia suffers from antisocial personality disorder.
[2] He lived for many years in the Kennedy locality, southwest from Bogotá, where at an early age he showed signs of violence, which is why he was sent to a specialized martial arts school.
[9] According to several people who knew Valencia, he used various types of drugs, including cocaine and heroin, but nevertheless dressed neatly and behaved calmly.
Colombian police tied him to the deaths of nine women, but according to Valencia, he has killed upwards of 100, including minors.