For decades, famed music producer Phil Spector was a recluse, hiding in his hilltop suburban castle. Then, a glamorous actress who starred in a cult movie was shot and killed there, and he could no longer run from the Hollywood spotlight. "'I think I killed somebody,'" Spector was quoted by his chauffeur, Adriano De Souza, who also told a grand jury that Spector had emerged from his mansion holding a gun, with blood on his hands. "What happened sir?" De Souza said he asked. "'I don't know,'" Spector responded. On Monday, the search begins for a jury to decide if...