Given that Zarqawi has become a loose cannon and that his actions are handicapping Al Qaeda's efforts, it seems reasonable to expect that an accident may befall him at some point in the near future. If handled right it can be made to look like he went out in a blaze of glory fighting American troops or that he was foully murdered. Either way, al Qaeda gets rid of a problem and gains another "martyr."
June 7th, 2006
"We want to give you the joyous news of the martyrdom of the mujahed sheik Abu Musab al-Zarqawi," said the statement, signed by "Abu Abdel-Rahman al-Iraqi," identified as the deputy "emir" or leader of al-Qaida in Iraq.
From Al Qauda June 8th, 2006