dubai iran supreme court uphold death sentence sweden-based iranian academic convict spy israel tehran prosecutor quote say monday confirm report amnesty international family ahmadreza djalali medical doctor lecturer karolinska institute stockholm medical university accuse provide information israel help assassinate several senior nuclear scientists djalali arrest iran april 2016 late convict espionage deny charge amnesty say least four scientists kill 2010 2012 tehran say assassinations mean sabotage efforts develop nuclear energy western power israel say iran aim build nuclear bomb tehran deny islamic republic hang man 2012 kill say agent israeli intelligence agency mossad monday tehran prosecutor abbas jafari dolatabadi say supreme court recently uphold death sentence djalali news site iran judiciary mizan report dolatabadi say djalali confess meet mossad agents repeatedly deliver information iran nuclear defense plan personnel help infect defense ministry computer systems viruses mizan report london-based amnesty international djalali wife say early month lawyers tell supreme court consider case uphold death sentence iranian state television broadcast last week describe djalali confessions wife say force interrogators read confession djalali business trip iran arrest send evin prison hold solitary confinement three months detention torture amnesty say say djalali write letter inside prison august state hold refuse spy iran sweden condemn sentence october say raise matter iranian envoys seventy-five nobel prize laureates petition iranian authorities last month release djalali could continue scholarly work benefit mankind iran confirm uphold death sentence academic spy