Hope they catch the murderous perpetrator soon... http://www.bbc.co.uk/news/world-middle-east-16501566. A university lecturer and nuclear scientist has been killed in a car explosion in north Tehran. Mostafa Ahmadi-Roshan, an academic who also worked at the Natanz uranium enrichment facility, and the driver of the car were killed in the attack. The blast happened after a motorcyclist stuck an apparent bomb to the car. Several Iranian nuclear scientists have been assassinated in recent years, with Iran blaming Israel and the US. Both countries deny the accusations.