Daniel Mark Lewin ( ; May 14 , 1970 – September 11 , 2001 ) , sometimes spelled Levin , was an American – Israeli mathematician and entrepreneur who co-founded internet company Akamai Technologies . A passenger onboard American Airlines Flight 11 , it is believed that Lewin was stabbed by one of the hijackers of that flight , and was the first person murdered during the course of the attacks
American Airlines Flight 11
American Airlines Flight 11
Daniel Lewin