Diving crews are still searching the icy waters of the Potomac River looking to retrieve the bodies of all the people killed in this week’s plane and helicopter collision. Retired Black Hawk instructor pilot Martin Gottholm discusses the difficulties in flying at night for Black Hawk pilots and questions surrounding the altitudes of the aircrafts at the time.

An American Airlines regional jet went down in the Potomac River near Washington, D.C.'s Ronald Reagan Washington National Airport after colliding with a U.S. Army Black Hawk helicopter on Wednesday night, with no survivors expected.

The voice and flight data recorders from American Airlines flight 5342 have been found and are being analyzed. Search teams are still looking for the recording device from the military helicopter. As investigators begin to piece together what led to Wednesday night's collision,

Family and friends remember victims of the collision between American Eagle Flight 5342 and an Army helicopter near Reagan National Airport.

As investigators look into the cause of Wednesday night's plane crash, pilots share their initial take on the collision.