Muslim Brotherhood chief wants retrial in Egypt CAIRO, June 6 (UPI) -- The chairman of the Muslim Brotherhood's political party in Egypt vowed to retry those acquitted of killing protesters during the 2011 revolution. Six former police commanders were cleared of murder charges during the hearing, however. Mohamed Morsi, a leading presidential candidate and chairman of the Muslim Brotherhood's Freedom and Justice Party, vowed to have a retrial for the "killers of the revolutionaries," the Islamic political organization said in a statement. He vowed that, if he wins a runoff election, he'd form a committee to investigate "all crimes" committed against anti-Mubarak demonstrators in a "fresh prosecution." Morsi squares off this month against Ahmed Shafiq, the last prime minister to serve in the Mubarak administration. The health of Mubarak, 84, is said to be failing. He had gall bladder surgery in Germany in 2010. Ruling Supreme Council of the Armed Forces, meanwhile, gave lawmakers a Thursday deadline to settle on membership for an assembly tasked with drafting a new constitution, reports Egyptian news service al-Ahram. If not, the ruling military council said, Egypt would revert to the 1971 constitution, which was suspended after Mubarak was ousted.