ARLINGTON, Va. − Crews returned to the Potomac River and forged ahead with a massive salvage effort on Wednesday, one week after a horrifying midair crash that killed all 67 people aboard a passenger jet and Army Black Hawk helicopter.

Authorities say they have identified all but one of the victims of the deadly collision that happened on January 29.

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.

The pieces of wreckage recovered Tuesday were lifted by a crane and placed onto a barge with other parts recovered from the flight that took off from Wichita, Kansas, for Washington's Reagan National Airport with 60 passengers and four crew members on board. One of the pieces recovered earlier in the day showed a portion of the American Eagle logo.

Officials confirmed Tuesday that all 67 victims in the DC midair crash have been recovered from the Potomac River, with 66 bodies positively identified.