Investigators recovered three spent 9-millimeter shells on the floor of the store.
Investigators recovered the gun and one spent shell from the car.
Investigators also recovered $2 million in counterfeit money from his home.
Six months later, investigators recovered the picture in France.
Chief Hill said investigators have recovered several other items.
As of last week, American and Iraqi investigators had recovered more than 900 pieces.
One official said that investigators had recovered a gun and property belonging to the owner of the house.
Investigators recovered the car's license plate and tracked down its owner.
The investigators also recovered a video recording that showed footage taken by the crew during their trip.
Investigators also recovered what they loosely characterized as a suicide note in the apartment.