Mousavi Will Attend Public Services Friday

Iranian opposition leader Mir Hossein Mousavi vowed not to let the blood of protesters killed in postelection crackdown go in vain as he met with the family of a young man shot to death during the turmoil, a reformist Web site reported today. He also announced that he will attend Tehran's main Friday prayer services this week for the first time, a key symbolic assertion of the opposition's presence.

The sermon Friday is due to be delivered by Akbar Hashemi Rafsanjani, who is a top rival of President Mahmoud Ahmadinejad and is believed to be a strong behind-the-scenes backer of Mousavi.The Tehran University event is a significant political platform that hard-line clerics have used in recent weeks to demand a halt to postelection protests. Rafsanjani could become the first opposition voice heard there. (More Mir Hossein Mousavi stories.)