Rituales de Sangre: The True Story Behind the Matamoros Cult Killings
By 
 DocumentaryCrime
2008  29min
 Synopsis
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 feature film Borderland (2007). Gavito was one of the bilateral investigators who "broke" the case of missing rich kid Mark Kilroy ("Phil" in the feature and "John" in this short) sensationalized by Geraldo Rivera at the time. This brief documentary uses archival news, police photos and videotape to prove the truth of the crimes is even stranger than the fictionalized feature film.
Ratings
Technical team
Zev Berman Producing
Mark Atkinson Executive Producing
Peter Block Executive Producing
Miguel Casillas Executive Producing
Kelly Pancho Executive Producing
Production
Lionsgate