Hard to say, really. As a fan of the whole electronica/trance/DJ genre, it was surprising but not shocking.

The autopsies evidently confirmed there was no foul play. It was "just" a straight suicide.

I'll "step inside" some of this and add that he was Swedish; basically very quiet and sensitive (as a person) and culturally (I'm Danish) Scandinavians often struggle with the way "making it big" steals your soul. This is a wild guess, but I would take a shot that he was not at peace with his own "stardom."

Scandinavia has a high suicide rate, IN SPITE of being welfare states where everyone is taken care of. Alcoholism also runs rampant there, compared to most places. When he stopped touring, "drinking" (presumably to deal with the stress) was one of the (I think unspoken?) reasons, disguised as some other ailment.

Now, his family is hinting at suicide. That's iffy to me, BUT some of his fellow artists/producers have spoken of him having a lot of "sadness" in his thoughts. Maybe there's a clue there. Maybe the guy simply was depressed... and did what many Scandinavians do when depressed-- commit suicide.

Speculation, of course... but I'd wondering this, myself, since the news came out.