Early on the morning of September 11, 2001, nineteen hijackers took control of four commercial airliners en route to San Francisco and Los Angeles from Boston, Newark, and Washington, D.C. (Washington Dulles International Airport). At 8:46 a.m., American Airlines Flight 11 was crashed into the World Trade Center’s North Tower, followed by United Airlines Flight 175 which hit the South Tower at 9:03 a.m.  The death toll of the attacks was 2,996.