On December 24, 2006, a security guard of the Iraqi vice president, Adel Abdul Mahdi, was shot and killed while on duty outside the Iraqi prime minister's compound. The Iraqi government has accused Andrew J. Moonen, a Blackwater employee at the time, of killing him while drunk. Moonen was subsequently fired by Blackwater for "violating alcohol and firearm policy", and travelled from Iraq to the United States days after the incident. The DOJ investigated and announced in 2010 that they were declining to prosecute Moonen, citing a likely affirmative defense of self-defense and high standards for initiating such a prosecution. The United States State Department and Blackwater USA had attempted to keep his identity secret for security reasons.