The chief of the base , Jennifer Lynne Matthews , 45 and a mother of three , started tracking al-Qaeda before the September 11 attacks . Joining the CIA in 1989 , she had a history in counter-terrorism dating back to the agency 's Bin Laden Issue Station . A U.S. official said Matthews was " one of the US government 's top experts on al-Qaeda and other terrorist groups . " Matthews had been chief of the base since September 2009
September 11 attacks
September 11 attacks
Camp Chapman attack