I actually don't know the guys (neither him nor his twin brother Pišta) except by hearsay from Duca and Tejka, whose boyfriends they were. Them being a couple of years older than I made them then (age 15-16) a whole class above, ergo not in same circles. They had a bunch of Hendrix records, that's all I know. In those years, though, there was a lot of mention of both of them.
AFAIK, still married with Duca.