AceShowbiz - Dolores O'Riordan died suddenly on January 15 at the London Hilton on Park Lane in Mayfair. The 46-year-old singer, who rose to fame as the lead singer of rock band The Cranberries with their hit songs such as "Linger" and "Zombie", was in London for a recording session. While she had struggled with bipolar disorder and ongoing drinking, she didn't show any signs of a mental breakdown as she left a cheerful message to her longtime friend Dan Waite hours before her death. The Irish singer previously composed a suicide note in September 2017, but doctor Robert Hirschfield said in his psychiatric report after a phone conversation with her in December that she was "doing well," had no suicidal thoughts and "was not drinking." But toxicology tests later revealed that she had been drinking heavily which led to alcohol intoxication and accidental drowning.