"He took a lot of trips out of town, but at the same time, they were for major corporations," she said. "I knew the people who were in these major corporations that he was talking to."
Levinson funded the trip himself, according to his wife. Salahuddin confirmed to Christine Levinson that her husband was talking with him about cigarette smuggling in the area.
"He has not seen Bob or heard anything about Bob," Christine Levinson said. "But he said that his friends say that is he's [in Iran]. I don't know any more than that."
Christine Levinson said she has been in touch with the Iranian government, and she even wrote a letter to its president. She has yet to receive a reply.
The couple's son Dan Levinson said he believes the U.S. government and his father's former FBI colleagues are doing everything they can to locate him.
"Some of the people working on this are not getting a lot of sleep," he said. "They're losing vacation time and they're sacrificing everything to bring him home for us."
Christine Levinson said she and her son plan to go to Iran if they don't get any answers in the near future.
"He is the most generous man in the whole entire world, generous with his time, his money, of himself, of his advice," said Susan Levinson. "To not have somebody like that around for our family is heartbreaking, and we're all heartbroken. And that will not mend until he comes home."