Eyewitness News helicopter pilot John Del Giorno shares his insights on the deadly collision between a passenger jet and a military helicopter.

An American Airlines flight crashed into the Potomac River after colliding with a U.S. Army helicopter while approaching Reagan National Airport.

Experts say the deadly incident poses grave questions about how a collision was able to happen over the US capital.

A passenger jet collided midair with a military helicopter near Reagan Airport, sending the aircraft into the icy Potomac River and leaving everyone on board feared dead.