The death of The Cranberries lead singer Dolores O'Riordan is not being treated as suspicious, British police said Tuesday. A friend said the singer sounded excited and "full of life" just hours before her death. O'Riordan, 46, was found dead Monday morning at a London hotel. Police initially said the death was "unexplained," but on Tuesday ruled it non-suspicious, meaning that they found no evidence of foul play. The case will be passed to a coroner to determine the cause of death.