SANAA, Yemen (AP) - U.S. officials won't confirm that it was a U.S. missile that killed al-Qaida's No. 2 leader in Yemen, but they are confirming his death. Saeed al-Shihri, a Saudi national who had spent six years in the U.S. military prison at Guantanamo Bay, was killed along with six others traveling with him in a car on Monday.