No idea what happened, but it is possible to get at some of his/her tabs. Google may have some cached, but it's also possible to find much of their posts at archive.com, aka the Wayback Machine. Here's one of the Icehouse songs, for example:
I reached out to him directly (found his email on a tab I had downloaded) to see what happened. His avatar is a tombstone, which is probably not a good sign…
