President & Director of Investigations. Bob Rahn is the President and Director of Investigations of Management Resources. He is a former homicide detective and has over thirty years of investigative experience. Bob has come full circle in his investigative career utilizing his extensive law enforcement experience and adapting it to the private sector by assisting attorneys, insurance companies and corporations. Here's an article on Mr. Rahn's client, Jonathan Fleming, who was recently exonerated April 8th, 2014.