A.D. Patterson retired from the federal government on June 1, 2015, after nearly thirty-eight years of service. During the time he worked at duty stations in Alaska, Ohlahoma, Louisiana, Texas, New Mexico, and Colorado.
ZPG: To Protect and Kill is his first novel and is the first book in the ZPG Series. He has also published a historical fiction novel, The Dutchman: An Assassin's Story with Dari Ganzar Publishing.
When not writing, he spends time with his grandchildren, works on his street-rd project car, and dabbles in amateur combat robotics. Presently, he resides in Aurora, Colorado with wife Deborah and their two cats, Thor an Freya.