Why did Prince die? Autopsy performed on music legend

By Piya Sinha-Roy and Jill Serjeant (Reuters) - An autopsy on U.S. music superstar Prince on Friday sought to determine why the innovative performer died, but authorities cautioned it could take weeks before the results are made public. The intensely private musician, whose hits included “Purple Rain” and “When Doves Cry,” was found dead at his home in suburban Minneapolis on Thursday at the age of 57, shocking millions of fans around the world and prompting glowing tribu