beb ra and hector rivera were shot to death on monday. their personal assistant is underarrest and facing murder charges. julian flores claimed an intruder killed the couple. a gun believed to be registered to flores was the murder weapon. we'll have much more on "gma" later on. >>> remember that $350,000 diamond that was lost in south florida. a house cleaner is under arrest. police say this woman took an 11-karat ring from her employers and sold it as a local store. she said she needed money to feed her children. >> bring it to your home. >>> in other news this morning, the fda is scrambling to test orange juice amid new concerns that it contains a chemical not approved in the u.s. the chemical, used to kill fungus was found in juice and a competitor's brand as well. the use in question was imported from brazil and often goes uninspected when it arrives in the u.s. the fda does not plan to remove juice from the shelves qulyet because they don't think the numbers are dangerous. >>> 1 in 6 adults admits to b g binge drinking. for college