Rituales de Sangre: The True Story Behind the Matamoros Cult Killings (2008)
Former Brownsville, TX, deputy sheriff George Gavito recounts the 23 grisly "palo mayombe" human-sacrifice torture-sex killings perpetrated by the gang led by Adolfo Constanzo in Matamoros, Mexico which ended in April, 1989 and are basis for the Zev Berman ...
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