This is unfortunate to hear;
as already remarked by others, he was an accomplished musician and in the years I kept regular contact with him he more than once told he could be out of touch for a while as he didn't like computers and therefor also wouldn't check any e-mail messages. So instead, we had some nice phone calls. It was in fact Mr Craig who introduced Ruben to me, to check him and his music out, which I did and wasn't the least disappointed;
Barry also help me out on reconnecting with Ruben when those periods of silence became longer; I remember Ruben as a nice, open and honest person who shared the same passion for music as did his friends Barry, Harold etc. He eventually send me about all of his privately released cds, I reviewed them all for KLEM EM fanzine, later E-dition magazine and they're also up on my current website. I for one think his emotive, if not intelligent music deserved much more attention, on which I hopefully contributed a bit by spreading the word through my writings and talks with others.
Cherio my friend, may you rest in peace in Heaven.