Air steward believes her plane was intended to be FIFTH 9/11 terrorist jet

An air steward working on a flight waiting to take off on 9/11 told FBI investigators there were six suspicious people on her plane, and believes her jet was intended as a fifth plane in the terror attack. Sandy Thorngren, a flight attendant on United 23, said she told the FBI that there were six suspicious passengers onboard the plane The World Trade Center towers are seen billowing with smoke on September 11, 2001, after the second plane hit at 9:03am September 11, 2001, remains the deadliest terrorist attack in American history, and saw 2,977 people killed in four separate massacres. American Airlines Flight 11 took off from Boston bound for LA, and crashes into the World Trade Center's North Tower at 8:46am. People run away as the North Tower of World Trade Center collapses on 9/11 Smoke billows from the Pentagon after one of the four planes crashed into it on September 11 Firefighters and emergency workers investigate the crash site of United Flight 93 after the jet was hijacked during the 9/11 terrorist attacks and passengers brought it down near Shanksville, Pennsylvania Within two months of the attacks, law enforcement authorities had detained, at least for questioning, more than 1,200 people.