Flight attendant who was first to report 9/11 hijacking remembered by brother ahead of 20-year anniversary

Betty Ann Ong, an American Airlines flight attendant, was the first person to alert authorities that tragedy was about to unfold on Sept. 11, 2001.

Ong was on American Airlines Flight 11, from Boston to Los Angeles. Hijackers flew it into the World Trade Center's North Tower. It was the first of the two planes to suffer that fate at ground zero that day. She relayed vital information to a ground crew that led to the Federal Aviation Administration to close airspace for the first time in history.