Investigators seek answers to Houston's death
Whitney Houston Davis Gala
Credit: AP
Sir Richard Branson is seen at the loading dock outside the Beverly Hilton Hotel Saturday Feb. 11, 2012 in Beverly Hills Calif. Whitney Houston, who ruled as pop music's queen until her majestic voice and regal image were ravaged by drug use, erratic behavior and a tumultuous marriage to singer Bobby Brown, died Saturday. She was 48.(AP Photo/Mark J. Terrill)
