Jaime Iván Martínez

It is believed that Martínez committed between 20 and 25 murders in the span of a decade.[2] One of the victims was identified as Natalia García Gil, Martínez's former wife, whom was hanged with the use of nylon.[1] The other people were murdered in the same way, including children who were 5 and 7 years respectively, all of whom were killed in November 2015.[1][4] It was also established that María Gladis Arango was another victim, who disappeared in mid-January 2016 in a village called Hoja Anche de Guarne, in Guarne.[1] Due to Arango's disappearance, the Colombian authorities imposed an "assurance measure for the crime of enforced disappearance", which allowed for a more detailed follow-up investigation.[2]

According to the investigating authorities, Martínez buried most of his victims in potter's fields at depths of 3 meters, wrapped in several yards of canvas, at a farm where he worked, as a method to forcibly hide the bodies. Nevertheless, according to his own confessions, he claimed that others were buried in two farms near the place where he lived.[9][1][7] He also collected objects and personal elements of his victims such as watches, smart phones, jewelry, etc.[2][4]

He was captured in Guarne by specialized personnel of the CTI, very close to the eastern subregion of Antioquia Department in a farm where he worked as a majordomo and guard, the same place where he committed several of the murders, although it is believed that he has killed others in Medellín and Valle del Cauca Department.[6][4] Martínez had worked as a farmer, but also held other jobs in surveillance and gardening.[2]

Martínez was sentenced to 42 years imprisonment for the murder of Arango, Gil and her two children. He was charged with several crimes, including forced disappearance and murder.[8]

• List of serial killers by country