What a powerful voice of rock and roll he was. I grew up on soundgarden and later listened to audioslave. Though at the time I didn't know the band's names. Truly sad to know he's no longer with us.
Oh my god. How freaking awful. I feel really horrible right now. I really wish there was a way to get him help beforehand. Please Rest peacefully, Chris. You'll definitely be missed and I hope whatever you were struggling with is gone and you're happy.
I saw it reported that the last song he performed at last night's show, was the band's cover of this Led Zeppelin song (altho they had apparently played it at other shows as well):