Just in case you guys are interested, I translated some additional stuff about Daisuke's death and posted it in my journal,
here.
In short: He died from an overdose of alcohol and ataractic drugs, however, it has not been confirmed that it would have been a suicide. Most of us know that Daisuke has mentioned several times he's had a weak heart since he was born, so it could just as well have been an accidental death caused by stress, his weak heart, and the combination of alcohol and sleep aides (he had said he can't sleep, just before his death).
Please also note that as far as I know, none of this information has been confirmed by Daisuke's record label or relatives, but it's from a Holiday blog (only artist blogs over there; the studs' staff blog is also on Holiday), and while I'm not exactly sure who the poster is, he's a journalist who's also been active in producing music as well as published some books, so he seems reliable enough to me.
This is such a major loss in the visual kei world. My heart goes out to his friends and family.