Erick Contreras

Erick Contreras, known as 'el Abuelo,' is a key figure in the Barrio 18 gang. He gained notoriety in 2018 when he testified against 23 members of the gang, including the notorious Aldo Dupié Ochoa Mejía, alias 'el Lobo.' His cooperation with authorities has made him a pivotal witness in the fight against gang violence in Guatemala.