Police Under Cover Truths: Inside His DEA Career

Police Under Cover Truths: Inside His DEA Career, Cartels, and Motorcycle Gangs. For more than two decades, David Tyree lived a double life. On the surface, he was a dedicated agent with the Drug Enforcement Administration (DEA). Behind the scenes, he infiltrated some of the most dangerous organizations in the world, outlaw motorcycle gangs and international drug cartels.