Shame if turns out he has passed away. I have heard his guitars were very fine examples of functional art, especially his 12 strings.
BTW, his first name is actually Božo, with the "ž" pronounced like a "zh" as in the s in vision or measure & the "o"s are short sounding o like in fort. Božic means ""Christmas". Unfortunate that his particular name doesn't translate well into English.