Since 2007, five Iranian nuclear scientists have been killed in Iranian territory. In some of these instances, the terrorists had attached small magnetic bombs to the exterior of the victims cars.
The explosive device was meant to kill the occupants without resulting in a blowing up of the car which could have led to a large number of casualties from the splinters of the exploding car.
The latest attack took place on January 11, 2012, when Mostafa Ahamdi Roshan, described by Western sources as a Deputy Director in the Natanz uranium enrichment facility, died in a blast in Tehran shortly after two assailants on a motorcycle placed a small magnetic bomb on his car.
It was reported by Iranian sources that the bomb was probably a shaped charge that directed all the explosive power inside the car, killing its occupants without causing any collateral damage to bystanders in the area. The explosive device was meant to kill the occupants without resulting in a blowing up of the car which could have led to a large number of casualties from the splinters of the exploding car.