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Mark Greaney

MARK GREANEY has a degree in international relations and political science. In his research for the Gray Man novels, including One Minute Out, Mission Critical, Agent in Place , Gunmetal Gray , Back Blast , Dead Eye , Ballistic , On Target , and The Gray Man , he traveled to more than fifteen countries and trained alongside military and law enforcement in the use of firearms, battlefield medicine, and close-range combative tactics. With Marine LtCol Rip Rawlings, he wrote the New York Times...See more