TARGETED: Mostafa Ahmadi Roshan, a chemistry specialist and a director of a uranium enrichment facility Iran, was killed in 2012 when a magnetic bomb was attached to his car and then exploded. A crowd surrounds his body. (Associated Press)

TARGETED: Mostafa Ahmadi Roshan, a chemistry specialist and a director of a uranium enrichment facility Iran, was killed in 2012 when a magnetic bomb was attached to his car and then exploded. A crowd surrounds his body. (Associated Press)