Iranian nuclear physicist killed by Revolutionary Guard, not Israel, relative claims
Sister of slain scientist says Iran killed him because he would not agree to help weaponize peaceful nuclear activities.
A policeman walks past the car belonging to Iranian nuclear scientist Mostafa Ahmadi-Roshan at a blast site outside a university in northern Tehran January 11, 2012. (photo credit: REUTERS)ByFELICE FRIEDSON/THE MEDIA LINE