The Iran Human Rights Documentation Center has put together a formidable list of all the Iranian assassinations targeting Iranian dissidents outside Iran. Alas, one of the first things Hillary Clinton did when assuming leadership at the State Department was to cut off funding to the Iran Human Rights Documentation Center. Its nonpartisan and well-documented reports got in the way of her efforts at rapprochement.
At any rate, in 2009, the New York Times provided an update on the hit man who carried out the assassination of an Iranian exile in Bethesda, Maryland. Unfortunately, by projecting weakness to an overconfident and ideological Iran, it seems President Obama has taken us back to the Carter-era in more ways than one. That said, kudos to the U.S. Justice Department for rolling this up before people died.