This Black History Month, we celebrate several trailblazers who have made history within the Tennessee Bureau of Investigation. • Mark Gwyn – The first African-American to serve as an Executive Officer before becoming the first African-American to lead the Tennessee Bureau of Investigation in 2004. Gwyn began his career with the TBI in 1988 as a Special Agent. He was promoted to Executive Officer in 1996. In 2001, he became an Assistant Director, in charge of the Forensic Services Division, supe

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