The Iranian nuclear scientist assassinated east of Tehran was shot by a remote-controlled machine gun operating out of another car, the semi-official Fars News Agency said. With top Iranian officials blaming Israel, Supreme Leader Ayatollah Seyyed Ali Khamenei and others have promised revenge for the Friday killing of Mohsen Fakhrizadeh, who was the country's chief nuclear scientist. Israeli Prime Minister Benjamin Netanyahu's office declined to comment to CNN. #CNN #News