On March 14, 1989, an American student named Mark Kilroy was kidnapped while vacationing on Spring break in Matamoros, Tamaulipas, Mexico. He was taken to a ranch and murdered in a human sacrifice ritual, killed with a machete, with his brain removed and boiled in a pot. The attackers buried his body parts along with 14 other people who had been murdered on the ranch. The remains were discovered by authorities on April 11, 1989, and an international manhunt began for 26-year-old Adolfo Constanzo, the leader of a cult called Los Narcosatánicos (The Narcosatanists). Constanzo told his drug-smuggling followers, most of whom were in their early 20s, that murdering people and sacrificing their bodies would magically protect them from being caught by police. OK!
Constanzo fled with a few of his followers but was eventually tracked down in Mexico City on May 6, 1989. With the police surrounding his apartment complex (they were serendipitously called there on an related dispute), Constanzo ordered one of the cult members to shoot him with a machine gun, and he died. The police arrested several Los Narcosatánicos members at the scene, and two years later, they were found guilty of drug trafficking and capital murder, among other charges. The shack that the cult performed their rituals in was burned down by law enforcement.