A Mexican rapper and YouTube personality allegedly admitted to dissolving three missing film students’ bodies in acid after their brutal murders in Jalisco last month.

Agence France Presse reported that Christian Omar Palma Gutierrez, 20, also known as “QBA,” claimed the Jalisco New Generation drug cartel paid him 3,000 pesos ($159) a week to work for them after he was recruited by a friend three months earlier. One of his tasks, he said, was disposing of the bodies of Aceves Gastelum, 25, Daniel Diaz, 20, and Marco Avalos, 20, after they were kidnapped, tortured, and murdered, according to AFP.

“He has participated in three other previous murders,” chief investigator Lizette Torres told the press agency.

At the safe house, authorities reportedly located tubs containing sulfuric acid. According to the New York Daily News, prosecutors said the film students were shooting a film at one of their aunt’s homes March 19 when the drug cartel abducted them. Prosecutors believe the cartel mistook the students for rival gang members.

Torres told the outlet that one of the students was beaten to death as the cartel was interrogating him. The student’s death prompted the gang members to kill the other two hostages, she said.

Gutierrez’s songs are said to focus on violence, weapons, and drugs and his videos features poor neighborhoods and guns. Torres said the rapper’s music was included in the investigation.

Prosecutors said Gutierrez and another person were jailed and will be charged with aggravated kidnapping. AFP wrote that authorities are seeking five people in connection with this case.

[Featured Image: Christian Omar Palma Gutierrez/Facebook]