Published: Apr 12, 2010 9:17 AM EDT

LOS ANGELES (AP) — The sisters of a Hollywood television producer's wife found dead in Cancun, Mexico, have asked Los Angeles prosecutors to assist with the case.

Attorney Alison Triessl represents Carla and Jeane Burgos, whose sister Monica was found dead in Mexico. Monica Beresford-Redman was married to former "Survivor" producer and "Pimp My Ride" creator Bruce Beresford-Redman.

Triessl says in a statement the family has asked the district attorney's office to "assist in any way that they can."

Los Angeles County district attorney's spokeswoman Sandi Gibbons confirms staff in their office met with the Burgos' attorneys on Monday. She declined to elaborate on what was discussed.

Mexican investigators say they're waiting for the results of forensic tests before deciding whether to arrest Bruce Beresford-Redman in the death of his wife.