in october 2007, the fbi announced it was able to get a partial dna profile of cooper from the tie he left on the hijacked plane. the fbi warehouse had lost other material with his dna. on december 31, 2007, the fbi revived the unclosed case: they published never before seen composite sketches and fact sheets online. they did this because some people might remember them, and help identify cooper. in a press release, the fbi said that it still does not believe cooper survived the jump, but wanted to know who cooper was. in march 2008, the fbi announced that another possible clue was being investigated after a torn, tangled parachute was found within the bounds of cooper's probable jump site near the town of amboy, washington. however, the fbi announced on april 1, 2008 that the parachute in question was not d. b. cooper's. the man responsible for packing the four parachutes said that the recently discovered parachute was not cooper's, as his was nylon, and the newly discovered parachute was silk, dating from the 1940s.