Colombia's Ministry of Defense said on 2026-09-04 via its X account that alias 'Naín' (Naín Andrés Pérez Concha), leader of the Autodefensas Conquistadoras de la Sierra Nevada (ACSN), was killed during a National Police operation in Riohacha, La Guajira. ^[1] On 2026-09-04, Colombian authorities killed Naín Andrés Pérez Toncel, alias Bendito Menor, and his partner Rosa Angélica Tarazona, alias La Bebecita, during a police operation in the Los Olivos neighborhood of Riohacha, La Guajira. ^[2] According to information known to EL TIEMPO, authorities had located the area where 'Bendito Menor' moved since the previous week, but a phone call made from one of his cell phones allowed intelligence agencies to geolocate the device and establish his exact location. ^[3] The operation also killed alias 'La Bebesita', the girlfriend of 'Bendito Menor', and two men preliminarily identified as 'el Tío' and 'Casiloco', alleged lieutenants of the ACSN, according to the article. ^[4] Authorities had offered a reward of up to 500 million pesos for information leading to Pérez Toncel's capture. ^[5] Pérez Toncel was the leader of the Javier Cáceres front of the Autodefensas Conquistadoras de la Sierra Nevada, a criminal organization with presence in several sectors of the Colombian Caribbean. ^[6] Rosa Angélica Tarazona had reached a pre-agreement with the Colombian prosecutor's office for conspiracy to commit a crime hours before her death; she had been arrested in September 2025 and given house arrest, but according to case information, she had allegedly violated it and returned to Pérez Toncel. ^[7] A special forces command entered the building where 'Bendito Menor' was with his girlfriend and several escort men during the early morning on calle 25 between carreras 13 and 14, in the Los Olivos neighborhood near Almirante Padilla airport in Riohacha. ^[8]