Bob Levinson was last seen on Iran 's Kish Island in March 2007 during business trip , family says . The photographs show him shackled , wearing a jumpsuit and holding signs . The family and the U.S. State Department have repeatedly denied he was working for the government and have urged Tehran to find him . He has not been heard from since then. It 's been six years , '' his wife tells CNN .
Bob Levinson was last seen on Iran 's Kish Island in March 2007 during business trip , family says . The photographs show him shackled , wearing a jumpsuit and holding signs . He has not been heard from since then. It 's been six years , '' his wife tells CNN .