Investigators seek answers to Houston's death
Whitney Houston Clive Davis
Credit: AP
Elvis Costello, right, and Diana Krall are seen outside the back entrance to 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)
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