'Survivor' Producer -- Custody Fight Brewing

0511-survivor-exThe sister of Monica Burgos Beresford-Redman tells TMZ she will fight Bruce Beresford-Redman for custody.

Carla Ferreira-Burgos tells TMZ, "I don't think someone suspected of killing their mother should be in charge of the kids."

As we first reported, the former "Survivor" producer is back in L.A. and will seek to regain custody of his two kids, even though he's still considered a "person of interest" in the murder of his wife.