Quoted from Mitch:Where did you hear suicide? Sounds like a made up rumor.
It's mentioned as "possible" suicide in this story on WXYZ Detroit: http://www.wxyz.com/news/region/detroit/ap-rocker-chris-cornell-from-soundgarden-has-died-at-age-52-in-detroit
I don't think WXYZ explains why they think it could be a possible suicide. At any rate, it sucks. Cornell was an awesome talent.