SAN DIEGO (AP) — One of three suspects charged with murdering a Marine’s wife said she strangled the victim, fearing she would upend a kinky sex ring by seducing her “Master,” according to search warrants unsealed Wednesday.

The comments suggest jealousy was a possible motive in the killing of 22-year-old Brittany Killgore, whose body was found in April near a Southern California lake. A judge ordered the warrants unsealed at the request of news organizations including The Associated Press.

Jessica Lopez wrote in a seven-page letter that she believed Killgore was trying to come between her, Louis Ray Perez and Dorothy Maraglino, who lived together at a home in Fallbrook, north of San Diego. Lopez, who calls Perez her “Master,” shoulders full blame for the killing.