The FBI is offering $5,000 to help them find a man they say helped rob a pair of Amazon delivery trucks at gunpoint in Yonkers last month.

On Dec. 22 and Dec. 29, two different Amazon delivery drivers in Yonkers said they were robbed at gunpoint.

In each case, they say two suspects duct taped their hands and took control of the truck before stealing Amazon packages into a getaway truck.

Police spotted the truck during the second robbery and chased it down.

That's when two of the suspects jumped out as it continued into the Bronx where police arrested Benjamin McDuffie in the basement of a local repair shop.

Police returned to Yonkers and arrested Robert Destrange.

The third suspect is the one still at large. Officials say he has a goatee and was last seen wearing a hooded sweatshirt. They say they have a picture of him that will immediately make him recognizable.

Both McDuffie and Destrange are charged with federal conspiracy and robbery. McDuffie faces two additional weapons charges. The two are expected back in federal court in White Plains on Jan 26.