Damn that is really shitty. I love Finntroll, big fan of the guitarwork.. it was bad enough that he died, worse that it comes out that he committed suicide.

Not to mention he abused drugs and alcohol. Nothing wrong with a bunch of Finnish guys getting drunk and making some music, but it seems Teemu's situation was too dire to go on with life, music, and having fun..
In related news, Finntroll's new album comes out in April/May. I'm assuming they found a new guitarist... I've got high hopes of them making a trip over to the U.S as well.
But once again, RIP Teemu.