The names of the 60 passengers and four crew members on board began to emerge Thursday as authorities revealed there were likely no survivors of the fiery tragedy that was shaping up to be the

Ryan O'Hara, 29, was the crew chief of the Black Hawk helicopter that collided with the passenger plane, according to CBS News. He leaves behind a wife and one-year-old son, his local Reserve Officers' Training Corps (ROTC) program said in a social media post confirming his death.

An American Airlines flight crashed into military Black Hawk helicopter late Wednesday night near Reagan National Airport. Here are the most recent fatal incidents prior to the crash

The soldiers on the helicopter that collided with an American Airlines jet on Wednesday night were from the 12th Combat Aviation Battalion based in Virginia.