Since protested started for the fraudulent election results, unofficial reports suggest more than 150 people have been killed by Basij militia backed by revolutionary guards. Iranian state-own TV says 17 people killed and they accused terrorists for killings. But hey what can we expect? Since Ahmadinejad called protesters “Dust” and state-own TV accused people for vandalizing and spying of foreign services; of course they would deny regime’s militias are killing people and they are responsible for terrors on streets.
This video clip shows Baisj militia shooting with snipers from a roof at protesters on June 20, 2009.
It seems they had "shoot to kill" order because most people got shot in head or above chest which it proves regime took repressive measures to shutdown protests.
Related videos: Shot, killed by Basij militia on June 20 and Behind the scene of a protest