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• The medical examiner didn't provide the names of the drugs or the amounts found in the actor's system, making it impossible to determine which drug was the major factor, said Dr. Charles McKay, a medical toxicologist for Hartford Hospital in Connecticut and a spokesman for the American College of Medical Toxicology.
• "There's a difference between a stimulant death, which would be cocaine and the amphetamines, and a narcotic death, like heroin," he said.
• The first two can cause heart rhythm problems, a stroke or heart attack, whereas heroin, especially with sedatives such as benzodiazepines, can depress breathing.
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• LOS ANGELES (AP) -- Having the nation's No. 1 song does not exempt an artist from Oscar rehearsals.
• Pharrell Williams ran through his catchy hit "Happy" more than half a dozen times Friday in preparation for the Oscar telecast. He even shared the spotlight with a spate of stars: Jamie Foxx, Brad Pitt and Kate Hudson showed up to rehearse while he was on stage.
• All I care about is the fun," Williams said to Hudson, who boogied in the audience as he practiced his dance-heavy number. A choir of high-school students and 20 professional dancers accompany his colorful performance.
• Also rehearsing Friday: Broadway star Idina Menzel, who's set to sing "Let It Go" from animated film nominee "Frozen"; U2, which is nominated for its song from the Mandela movie, "Ordinary Love"; and rocker Karen O, who is nominated for "The Moon Song" from best-picture nominee "Her."
• Menzel was awed by the technology that allowed the Oscar orchestra, playing off-site at the Capitol Records building, to coordinate with her live at the Dolby Theatre.
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