just out of curiosity, i decided to watched a video of the entire final concert. he was very obviously loaded, and the whole performance was just extremely poor in my opinion. his guitar playing was ultra sloppy (not really following the rhythm or timing of the songs), and the vocals were sadly completely shot. there has been some talk about how he was in a serious depression due to the fact that he was realizing the current limitations of his voice while out on this tour. you can never trust any of that media gossip bullshit, but i can see some truth in that. imagine having to go out there on stage and perform these old songs for an hour while just KNOWING that you can't pull it off, and that every high note you attempt will be completely fucked. you'll never be able to pull off all of those signature moments that the fans are waiting for. it's sad... the whole band looked pissed off and there was zero chemistry between them.
whatever. he was by FAR the best singer from that scene, and Soundgarden was by far the best band from that scene. Metal without a doubt, just heavy fucking metal.
RIP