I don't have the details, I just know that he died in Brazil, where he was a facilitator at an ayahuasca center for the last couple years since his book "back from the void" was released. He was working on a new book before his death a couple weeks ago. There is mention of it on a new psychedelic salon podcast but how he died is not public.
In case you don't know, Zoe7 was a pioneer in combining salvia divinorum and ayahuasca with brainwave sync machines and wrote two books about his consciousness explorations.."Into the void", and "Back from the Void".
http://www.matrixmasters.net/salon/?cat=65Podcast 038 you can hear his old talk at Mindstates.
Long live the unwoke.