6, 2012, in Washington during a news conference. The FBI announced a reward of up to $1million for information leading directly to the safe location, recovery and return of Robert A. Levinson, a U.S. citizen and former FBI Special Agent who disappeared from Kish Island, Iran, five years ago. (AP Photo/Manuel Balce Ceneta)

Dawud Salahuddin, an American fugitive living in Iran who is wanted for the assassination of a former Iranian diplomat in Maryland in 1980, is the last known person to have seen Levinson before his disappearance.

Iran has offered a series of contradictory statements about Levinson in the time since.

It asked the U.N. group to close its investigation into Levinson in February, saying “no proof has been presented by the claimant in this case to prove the presenceCurrent Events

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