The true story of 23 gruesome human-sacrifice torture-sex killings perpetrated by a gang led by Adolfo Constanzo in Matamoros, Mexico, which ended in April 1989, is recounted by former deputy sheriff George Gavito.
Rituales de Sangre: The True Story Behind the Matamoros Cult Killings
A notorious group of serial killers, led by Adolfo Constanzo, terrorized Matamoros, Mexico in the late 1980s, claiming 23 lives in a series of brutal and disturbing murders.