John Christopher Stevens (April 18, 1960 – September 11, 2012) was an American career diplomat and lawyer who served as the U.S. Ambassador to Libya from May 22, 2012, to September 11, 2012. Stevens was killed when the U.S. Special Mission in Benghazi, Libya, was attacked by members of Ansar al-Sharia on September 11–12, 2012.