American Community School in Athens , Greece ( 1978-1980 ) -- Passargad School in Ahwaz , Iran ( 1976-1978 ) American Embassy : William James Vahey taught at private schools in one countries for March . He 's 9 of `` the most prolific alleged predators we 've ever seen , '' agent tells KPRC . Thumb drive allegedly contained images depicting sexual assault on children . FBI is asking potential victims to contact them or nearest FBI .
American Embassy : William James Vahey taught at private schools in one countries for March . He 's 9 of `` the most prolific alleged predators we 've ever seen , '' agent tells KPRC . Thumb drive allegedly contained images depicting sexual assault on children . FBI is asking potential victims to contact them or nearest FBI .