Question: What was the High Priestess of Blood, the serial killer featured in the action crime horror film, Perdita Durango, convicted of?

Context paragraphs:
My Brother the Serial Killer: My Brother the Serial Killer is a 2012 American television documentary about serial killer Glen Rogers, otherwise known as the "Casanova Killer", who was convicted for a series of murders and arsons.  The documentary was narrated by Rogers' brother Clay Rogers and aired on Investigation Discovery in November 2012.  "My Brother the Serial Killer" received widespread media attention for Clay's claims that his brother was responsible for the 1994 murders of Nicole Brown Simpson and Ronald Lyle Goldman.

Henry: Portrait of a Serial Killer: Henry: Portrait of a Serial Killer is a 1986 American psychological horror crime film directed and co-written by John McNaughton about the random crime spree of a serial killer who seemingly operates with impunity.  It stars Michael Rooker as the nomadic killer Henry, Tom Towles as Otis, a prison buddy with whom Henry is living, and Tracy Arnold as Becky, Otis's sister.  The characters of Henry and Otis are loosely based on real life serial killers Henry Lee Lucas and Ottis Toole.

Mary Ellen Tracy: Mary Ellen Tracy (aka Sabrina Aset) (born 1943) is the high priestess of the Church of the Most High Goddess, who was convicted in 1989 of a single misdemeanor count of running a house of prostitution in connection with the operation of the church, located in West Los Angeles, California.  Tracy is a graduate of the University of Miami, cum laude in chemistry, did graduate work in chemistry at UCLA, and received her masters in Environmental Sciences/Chemistry from Portland State University.

Evilenko: Evilenko is a 2004 English-language Italian crime horror thriller film very loosely based on the Soviet serial killer Andrei Chikatilo.  Written and directed by David Grieco, the film stars Malcolm McDowell, Marton Csokas, and Ronald Pickup.

Manhunter (film): Manhunter is a 1986 American crime horror film based on the novel "Red Dragon" by Thomas Harris.  Written and directed by Michael Mann, it stars William Petersen as FBI profiler Will Graham.  Also featured are Tom Noonan as serial killer Francis Dollarhyde, Dennis Farina as Graham's FBI superior Jack Crawford, and Brian Cox as incarcerated killer Hannibal Lecktor.  The film focuses on Graham coming out of retirement to lend his talents to an investigation on Dollarhyde, a killer known as the "Tooth Fairy".  In doing so, he must confront the demons of his past and meet with Lecktor, who nearly counted Graham amongst his victims.

Greenskeepers: Greenskeepers are an indie rock/new wave band from Chicago.  Their song "Lotion" is a tribute to the character Buffalo Bill, the fictional serial killer featured in the 1991 film, "The Silence of the Lambs".  "Lotion" also came in at #90 in the 2004 Triple J Hottest 100.

Roger Cudney: Roger Cudney is an American actor, singer, dubbing director, radio and television announcer.  Born in Cleveland, Ohio, Cudney is known for starring in numerous Mexican films and telenovelas where he has portrayed numerous different characters.  He has also had parts in mainstream Hollywood films including a co-starring role opposite Charles Bronson in "The Evil That Men Do", "Total Recall", "", the James Bond film "Licence to Kill", "Julia", "Perdita Durango" and "Original Sin".  Most recently he portrayed the part of the United States Ambassador to Mexico in 'La dictadura perfecta'.

Perdita Durango: Perdita Durango, released as Dance with the Devil in the United States, is a 1997 Spanish action crime horror film directed by Álex de la Iglesia, based on Barry Gifford's novel "59° and Raining: The Story of Perdita Durango".  It features a psychotic criminal couple who kidnaps a random teenage couple, and plans to rape and offer them in sacrifice (similarly to the 1989 real life human-sacrifice of Mark J. Kilroy by Mexican drug traffickers).  It stars Javier Bardem as Romeo Dolorosa, the main character, and Rosie Perez as Perdita Durango serves as the co-star.  Inspired by Magdalena Solís and The Hernandez Brothers's sect.

Magdalena Solís: Magdalena Solis, also known as the High Priestess of Blood, was a serial killer and member of a Mexican cult responsible for orchestrating several murders which involved the drinking of the victims' blood.  She was convicted of two of the murders and sentenced to 50 years in prison.

The Long Island Serial Killer (film): The Long Island Serial Killer (also known as The Gilgo Beach Murders) is a 2013 American true crime horror film loosely based on the elusive Long Island serial killer who murdered seventeen women on Long Island between 1996 and 2010.

Supporting paragraphs: Perdita Durango Magdalena Solís
Answer: two of the murders