This reward poster released by the U.S. government's Rewards for Justice program, shows Egyptian chemist Midhat Mursi, also known as Abu Khabab al-Masri. The U.S. government has posted a $5 million reward this year for the capture of the alleged al Qaeda bomb maker. (AP Photo/ HO) Jan. 18, 2006 — ABC News has learned that al Qaeda's master bomb maker and chemical weapons expert was one of the men killed in last week's U.S. missile attack in eastern Pakistan. Midhat Mursi, 52, also known as Abu Khabab al-Masri, was identified by Pakistani authorities as one of three known al...