Chris Cornell: Inside Soundgarden, Audioslave Singer's Final Days

Mark SeligerThe last time Serj Tankian saw Chris Cornell, everything seemed great. On March 25th, the two friends – Tankian, the singer in the alternative-metal band System of a Down, and Cornell, the founding singer-guitarist of the pioneering Seattle grunge band Soundgarden – were guests at a star-studded 70th-birthday gala thrown by Elton John in L.A. "We had this long chat, sitting next to each other," Tankian remembers. He and Cornell talked about composing for movies and t