Bob Wittman, now retired from the agency, is the founder of the FBI’s Art Crime Team. In his 20-year career with the FBI, he recovered more than $300 million worth of cultural property, including a Rembrandt self-portrait and an original copy of the Bill of Rights. Wittman had dual expertise as an art expert and an undercover agent, making him uniquely adept at convincing criminals to sell him stolen art. Wittman went undercover in 2006 to follow up on a tip about the Gardner’s stolen works. A potential recovery hinged on the trust he built with a Corsican gang operating in France and Miami. But Wittman says his efforts were undermined by a territorial supervisor in the Boston FBI office - a supervisor who did what he could to push Wittman off the case in order to maintain Boston’s sole dominance in the investigation.