An update to a story we posted last week:  Turns out the new lead in the 1971 plane-jumping case turned out to be a dud.

DNA testing has failed to link a necktie belonging to the notorious hijacker 'D.B. Cooper' with a new suspect in the 40-year-old case, the FBI says.

Marla Cooper recently came forward with the belief that her uncles were involved in the hijacking and had a necktie that FBI tried to obtain the matching DNA from.

Marla Cooper provided the FBI with some items belonging to her uncle, including a guitar strap.

Fingerprint testing on a guitar strap belonging to L.D. Cooper also proved inconclusive. Investigators are now working with family members to identify other items that could be tested further for fingerprints.

DNA testing finds no link between 'D.B. Cooper' and suspect - On Deadline - USATODAY.com.