keywords: zarqawi qaeda al muslim abu
text: Zarqawi Cleric Ally Killed in U.S. Strike -Family  AMMAN (Reuters) - The spiritual mentor of al Qaeda ally Abu  Musab al-Zarqawi, a Muslim cleric who justified Zarqawi's  beheading of hostages in Iraq, has been killed in a U.S. air  strike, associates and relatives said on Wednesday.