Less than a week into its world tour, U2 has lost its tour manager. Dennis Sheehan died in his Hollywood hotel room in the early hours of Wednesday (5/27) after suffering an apparent heart attack. Paramedics were unable to revive the Irish band's tour manager of more than three decades after receiving a call for a medical emergency in the 5a.m. hour The band posted a note of sadness on its web site, calling Sheehan a member of the U2 family. Anyone with tour experience will tell you that being a tour manager is one of the most demanding and thankless gigs of all. Sheehan was one of the best in the biz.