What experts on John F. Kennedy, Martin Luther King Jr and Bobby Kennedy assassinations hope to learn from files expected to ...

Officials said they do not believe there were any survivors and continue to investigate the cause of the collision.

Louisiana officials share their condolences after a deadly helicopter and American Airlines passenger jet collision near ...

A midair collision between an Army helicopter and a jetliner killed all 67 people aboard the two aircraft, officials said ...

An American Airlines plane with 64 people on board collided with an Army helicopter over Washington, D.C., and crashed into ...