About the Author
Dr. Michael Asken is the psychologist for the Pennsylvania State Police where he is involved with selection and training of Troopers. He functions as the psychologist for the PSP Special Emergency Response Team for both the tactical operators and crisis negotiators. He is involved with cadet performance issues at the Pennsylvania State Police Academy. He is on the Editorial Board of the The FireArms Instructor. He has written articles for PoliceOne.com., SWAT Digest, The Crisis Negotiator, The Tactical Edge, Law Officer, The Bulletin of the Pennsylvania Chiefs of Police, and the FireArms Instructor. Mike is an instructor for Top Gun undercover narcotics agent training. He has consulted with and/or provided training for the National Tactical Officers Association, Eastern States Vice Investigators Association, the International Association of Law Enforcement Firearms Instructors, the New England Crisis Negotiator s Association, the International Association of Chiefs of Police, the Pennsylvania Attorney General s Agents, the Pennsylvania Tactical Officers Association, the Naval ROTC Battalion at Villanova University, the United States Postal Inspection Service, the FBI, the United States Army War College and Naval Special Warfare Group. Mike holds a B.A. degree in Social & Behavioral Sciences from the Johns Hopkins University. He completed his doctoral degree in Clinical Psychology with a minor in Medical Psychology at West Virginia University and served his internship at the East Orange (New Jersey) Veterans Administration Hospital. Loren W. Christensen is a Vietnam veteran, a retired police officer with 29 years of law enforcement experience, and a martial artist since 1965. His police experience includes working gang enforcement, street patrol, intelligence, the training division and dignitary protection. As a martial artist, Loren has earned 11 black belts: 8th dan in karate, 2nd dan in jujitsu, and a 1st dan in arnis. He has starred in seven instructional DVDs. As a writer, Loren has penned over 40 books and dozens of magazine articles on a variety of subjects. While his target audience is most often what he calls the warrior community martial artists, cops, and soldiers his writing includes a variety of other subjects for a broader audience, including fitness, nutrition, riots, street prostitution, street gangs, surviving workplace violence and surviving deadly school shootings. Lt. Col. Dave Grossman is an internationally recognized scholar, author, soldier, and speaker who is one of the world s foremost experts in the field of human aggression and the roots of violence and violent crime. Col. Grossman is a West Point psychology professor, Professor of Military Science, and an Army Ranger who has combined his experiences to become the founder of a new field of scientific endeavor, which has been termed killology. In this new field Col. Grossman has made revolutionary new contributions to our understanding of killing in war, the psychological costs of war, the root causes of the current virus of violent crime that is raging around the world, and the process of healing the victims of violence, in war and peace. He is the author of On Killing, which was nominated for a Pulitzer Prize; has been translated into Japanese, Korean, and German; is on the US Marine Corps recommended reading list; and is required reading at the FBI academy and numerous other academies and colleges. Col. Grossman co-authored with Gloria DeGaetano Stop Teaching Our Kids to Kill: A Call to Action Against TV, Movie and Video Game Violence, which has been translated into Norwegian and German, and has received international acclaim. Col. Grossman s most recent book with Loren Christensen is On Combat, the highly acclaimed sequel to On Killing.