(CNN)Here's some background information about the September 11, 2012 attack on the US mission in Benghazi, Libya.
September 11, 2012 - The US mission in Benghazi, Libya, is attacked and burned. An attack later that night involves mortar and rocket fire against a US diplomatic annex in the city.
September 11: (Events listed in local Benghazi time)
9:42pm - Armed men begin their assault on the US mission.
Midnight to 2am - Secretary Panetta and other senior leaders discuss possible options for further violence if it were to break out. Panetta gives verbal orders for Marine anti-terrorist teams from Rota, Spain, to prepare to deploy to Tripoli and Benghazi. Panetta also orders a special operations force team training in Croatia and an additional special operations force team in the United States to prepare to deploy to a staging base in southern Italy.
September 11, 2012 - Initial reports claim a mob of angry protestors gather outside the US temporary mission in Benghazi, Libya. Protestors reportedly storm the building, and Ambassador Stevens dies of smoke inhalation as does IT expert Sean Smith. Two security personnel, former US Navy Seals Glen Doherty and Tyrone Woods, are killed in a subsequent attack after helping to evacuate those at the mission to a US diplomatic annex.