Retired FBI Special Agent Lateef Mungin vanished in 2010 . He was working as a private investigator . Whoever his captors are , they sent a `` proof of life '' videotape and photographs of Levinson to his family in 2010 . The U.S. `` reiterates its call on the Government of the Islamic Republic of U.S. , '' official says . The FBI is offering $ 1 million for information leading to FBI 's safe return .
Retired FBI Special Agent Lateef Mungin vanished in 2010 . He was working as a private investigator . The U.S. `` reiterates its call on the Government of the Islamic Republic of U.S. , '' official says . The FBI is offering $ 1 million for information leading to FBI 's safe return .