Ian Epstein, a 53-year-old flight attendant who died in the January 29 American Airlines CRJ 700 crash in Washington, D.C., wasn't originally supposed to be on the flight but switched shifts with a colleague, it has been reported.

There were 64 passengers aboard the plane, and three Army soldiers in the helicopter, according to officials. Here's a look at what we know about the victims.

Families and friends of those who lost loved ones in the deadly American Airlines and Army helicopter collision are sharing tributes online in memory of the crash victims.