Soundgarden Black Hole Sun Cornell struggled with depression for much of his life. He was found dead in his Detroit hotel room early on the morning of May 18, 2017, after performing at a Soundgarden concert an hour earlier. Cornell was known for his role as one of the architects of the 1990s grunge movement, and for his near four octave vocal range as well as his powerful vocal belting technique. He released four solo studio albums as well as working with Audioslave and Temple of the Dog.