Question: What author, pastor, and former US Army Ranger co-authored three books with Alton Gansky?
Context: Alton Gansky is an American novelist in the Christian fiction genre.  He has written 6 non-fiction books and 23 novels, three of which were co-authored with former Army Ranger Jeff Struecker.  In 2012 Gansky and Struecker's "Fallen Angel" was honored as the American Christian Fiction Writers' "top thriller" of that year. The Eighth Army Ranger Company, also known as the 8213th Army Unit, was a Ranger light infantry company of the United States Army that was active during the Korean War.  As a small special forces unit, it specialized in irregular warfare.  Intended to combat the North Korean (NK) commandos who had been effective at infiltration and disruption behind United Nations (UN) lines, the Eighth Army Ranger Company was formed at the height of the Battle of Pusan Perimeter in September 1950 and was the first U.S. Army Ranger unit created since World War II.  The company went into action as a part of the 25th Infantry Division during the UN advance into North Korea in October and November.  It was best known for its defense of Hill 205 against an overwhelming Chinese attack during the Battle of the Ch'ongch'on River which resulted 41 of the 51 Rangers becoming casualties. The 75th Infantry Regiment (Ranger) (officially 75th Infantry Regiment or 75th Infantry) was initially a parent regiment for all the US Army Ranger units during the Vietnam War and the early 1980s and then the headquarters for the Ranger battalions. Jeffrey D. Struecker (born March 7, 1969 in Fort Dodge, Iowa) is an author, pastor, and former U.S. Army Ranger who was involved in the Battle of Mogadishu in 1993.  He also participated in the 1989 invasion of Panama (Operation Just Cause) and in Kuwait during Operation Desert Storm.  Struecker has co-authored five published books. Ryan Cleckner is a former Army Ranger sniper and instructor with the 1st Ranger Battalion of the US Army.  He is currently an attorney, competitive shooter, and author of the Long Range Shooting Handbook. Dr. James A. Helis, Rear Admiral (United States Maritime Service), is the twelfth Superintendent of the United States Merchant Marine Academy.  A 1979 graduate of the United States Military Academy at West Point, New York, and a decorated Afghanistan War veteran, Helis served thirty years in the US Army, retiring at the rank of Colonel (United States Army).  In 2012, Helis was commissioned a United States Maritime Service Rear Admiral and appointed Superintendent of the United States Merchant Marine Academy by US Secretary of Transportation Ray LaHood.  Helis served his last eight years with the U.S. Army as an academic, culminating as Chair of the Department of National Security and Strategy at the United States Army War College, Carlisle, Pennsylvania.  Helis earned a Master of Arts in political science from the University of Pennsylvania, a Master of Military Affairs from the United States Army Command and General Staff College, School of Advanced Military Studies at Fort Leavenworth, Kansas, and a Doctor of Philosophy in international relations from the Fletcher School of Law and Diplomacy at Tufts University.  An airborne United States Army Ranger, Helis was awarded the Army Master Parachutist Badge.  Helis and his wife Jan have two sons, Dr. Corbin Helis, a physician and West Point graduate, and Ian Helis. Lee Carroll is an American channeller, speaker and author.  Carroll has authored thirteen books on channellings from an entity he calls "Kryon", and has co-authored three books on what he terms indigo children, a new generation of children he says represents an evolution in human consciousness. Dr. Herbert Hugh Thompson is a computer security expert, an Adjunct Professor in the Computer Science Department at Columbia University, and the Chief Technology Officer of Symantec.  He is also the Program Chairman of RSA Conference the world’s largest information security conference with over 25,000 attendees annually.  Thompson is the co-author of a book on human achievement titled The Plateau Effect: Getting from Stuck to Success published by Penguin in 2013 and has co-authored three books on information security including, How to Break Software Security: Effective Techniques for Security Testing published by Addison-Wesley, and The Software Vulnerability Guide published by Charles River 2005.  He is perhaps best known for his role in exposing electronic voting machine vulnerabilities as part of the HBO Documentary Hacking Democracy.  He was named one of the “Top 5 Most Influential Thinkers in IT Security" by SC Magazine and has been referred to by the Financial Times as “One of the world’s foremost cryptology and internet security experts.” Isao Noda (born January 29, 1951 in Tokyo, Japan) is a chemical engineer whose research has focused on polymer science and spectroscopy.  He currently holds ninety patents granted in the United States and the EU, has published over three hundred articles, co-authored three books and received a number of industry-wide awards and recognition for his contributions to his fields of research. Dan Heath is an American bestselling author, speaker and professor at Duke University.  He, along with his brother Chip Heath, has co-authored three books, "" (2010), "Made to Stick: Why Some Ideas Survive and Others Die" (2007).  and "Decisive: How to Make Better Choices in Life and Work"
Answer: Jeffrey D. Struecker