U.S. Hostage Beheaded A group claiming ties to al Qaeda beheads U.S. hostage Paul Johnson in Saudi Arabia. The 49-year-old engineer, an employee of Lockheed Martin working on Apache attack helicopter systems in the Saudi capital city of Riyadh, was taken hostage last weekend. His captors warned they would kill him unless al Qaeda suspects were released from jail. Hear NPR's Melissa Block and Knight Ridder correspondent Dave Montgomery.