In early September 2001 , Atta traveled to Prince George 's County , Maryland , where fellow hijacker Hani Hanjour was at the time . Atta then traveled to Boston . On September 10 ( the day before the attacks ) , he traveled with Abdulaziz al-Omari to Portland , Maine . They spent the night at the Comfort Inn in South Portland . On the morning of September 11 , Atta and Omari flew on Colgan Air back to Boston , where they boarded American Airlines Flight 11 . Fifteen minutes into the flight , the team of hijackers stormed the cockpit and Atta took over control of the aircraft . At 8:46 a.m. , Atta crashed the Boeing 767 into the North Tower of the World Trade Center . The crash led to the collapse of the tower 102 minutes later at 10:28 a.m. , ultimately causing the deaths of over 1,600 civilians and first responders
American Airlines Flight 11
American Airlines Flight 11
Mohamed Atta