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Class Instructors

InSights Instructors

Our professional instructors come from highly specialized and thorough backgrounds in Law Enforcement, Military Special Operations, and the Private Sector. They have all received extensive instructor development training from our own master trainer, Greg Hamilton, in addition to high level training from numerous national academies. Greg (and John Holschen) are the only two-time winners in the history of the National Tactical Invitational and have been recognized as "Master Tacticians" and "Master Trainers" by the American Tactical Shooting Association. Our staff's operational experience and teaching expertise combine to insure you a positive learning experience while increasing your personal security awareness and skills.

Greg M. Hamilton, Chief Instructor

Greg Hamilton is the Founder and Chief Instructor for InSights. He is internationally recognized as one of the best firearms and tactics instructors in the world. He is a veteran of the U.S. Army Rangers and Special Forces, and is certified by the Army as a Close Quarters Combat Instructor and Anti-Terrorism Instructor. He is certified by the National Law Enforcement Training Center as a Handgun Retention Instructor, and by the Washington State Criminal Justice Training Commission (WSCJTC) as a Firearms Instructor.

Greg has been named a "Master Instructor" and "Master Tactician" by the American Tactical Shooters Association. He has attended and/or been an instructor at Gunsite Training Center, Mid-South Institute of Self-Defense Shooting, Defense Training International, American Pistol Institute, Lethal Force Institute, Chapman Academy, National Law Enforcement Training Center, H&K's International Training Division, ITC/Thunder Ranch, and Yavapai Firearms Academy.

Greg is a two-time National Champion and has placed in the top five at the National Tactical Invitational six years in a row. More importantly, he has trained more than half a dozen people to accomplish similar results. Greg has made InSights courses nationally known for their incredible attention to detail and for the level of performance of their graduating students.

John Holschen

John Holschen is a frequent guest instructor with InSights. John served for over 20 years in the Special Operations and Intelligence branches of the U.S. Army. He is a graduate of multiple Military Close Quarters Combat courses, is certified as an instructor by the U.S. Army and as a Firearms Instructor by the Washington State Criminal Justice Training Commission.

John was a senior instructor at the JFK Special Warfare Center and School and was the Close Quarters Combat Master Instructor for the 1st Special Forces Group. He has conducted extensive research on the training and tactics of international terrorists and has written a number of reports analyzing terrorist capabilities and methods.

John is a four-time winner of the National Tactical Invitational and has placed among the Top 5 Practitioners each of the nine years that he participated.

John has over 30 years of martial arts experience and is an instructor in Daito Ryu Aiki Budo, Shorin Ken Karate Do, and Shotokan Karate.

Keven Kerkam

Keven Kerkam has been with InSights from the beginning, and is a graduate of all their firearm and tactical courses. He is certified by the WSCJTC as a Firearms Instructor. He has graduated from multiple courses from Gunsite, DTI, International Training Consultants, LFI, Yavapai Firearms Academy, and Jim Cirrilo's Shooting Course.

Keven is an instructor for Handgun, Rifle, and Shotgun, and a coach for Tactics.

Mike Shertz, M.D.

Mike Shertz, M.D. has attended all InSights courses and multiple courses from DTI, Gunsite. He is a qualified Special Forces Medic and is certified by the U.S. Army as a Combatives Instructor. He is a member of the International Wound Ballistics Association and the American Society of Law Enforcement Trainers. Mike has finished in fifth place or higher in nearly every NTI since 1997.

Mike is an instructor for Handgun, Rifle, Unarmed, Knife, and Tactical Emergency Medicine. He is a coach for Shotgun, Tactics, Handgun Retention, and Close Quarters. Mike serves as the Chief Medical Officer and leads a team of Tactical Medics for the Washington County, Oregon, SWAT team.

Dave Handa

Dave Handa is an instructor for Basic Handgun and Glock Maintenance and a coach for Handgun, Rifle, and Tactics. He is certified by the Washington State Criminal Justice Training Commission as a Firearms Instructor, he is an NRA Pistol Instructor and is a factory-certified Glock Armorer. He has graduated from multiple courses at InSights, Gunsite, DTI, LFI and International Training Inc.

John Fogh

John Fogh has been with InSights since 1996 and is a primary instructor for Unarmed Self Defense, Defensive Folding Knife, and Handgun Retention and Disarming. John holds a Black Belt in Judo and has graduated from multiple InSights handgun, longarm, combatives and tactics courses. John is currently working internationally as a military analyst and trainer.

Tracy Roberts

Tracy Roberts is an instructor for InSights Basic and General Defensive Handgun courses and is a coach for higher level handgun, shotgun, rifle, and all combatives courses. He is certified as a firearms instructor by the WSCJTC and has worked as a climbing guide on Mt. Rainier for over 20 years. Tracy has completed courses with Gunsite, DTI, LFI, 10-8 Consulting, and Viking Tactics, and served as an Infantry Platoon Leader in Vietnam.

Benjamin Olmsted

Benjamin Olmsted is retired patrolman with a Police Department in Washington, a member of the SWAT team, and a certified Defensive Tactics Instructor. He is a former Military Police Officer and Security Force Company Platoon Sergeant with the USMC. Benjamin is a graduate of the USMC Close Quarter Battle school, Assault Breacher school, and Designated Marksman school. He is also a graduate of the US Army Special Response Team school, Physical Security course, and the L.A.S.O. SWAT school.

Ben has taken courses at InSights, MISS, and the Bill Rogers School. He is a firearms, tactics, and SWAT instructor for InSights.

Nick Collins

Nick is an instructor for our handgun, rifle, and combatives courses. He has served as an Infantryman for more than 15 years in the US Army with over 8 years as a Sniper, Sniper Team Leader, and Sniper Squad Leader. He has served two combat tours in Iraq where he led dismounted patrols, conducted sniper operations, served on a personal security detail, performed convoy escort missions, and was a quick reaction force squad leader for Task Force Baghdad.

Nick has over 10 years instructor experience teaching military pre-deployment, firearms, and combatives classes. His medical background includes certifications as an Emergency Medical Technician, Wilderness EMT, Coast Guard Medical Person in Charge, CPR for Professional Rescuer, Army Combat Lifesaver, and courses in Tactical First Aid.

Nick is an experienced security driver and has trained in surveillance detection, evasive and protective driving, off road driving and recovery, and personal security detail driving at BSR, International Training Inc., and Tactical Explosive Entry School.

Jeff Mau

Jeff Mau has worked as a full time law enforcement officer since 2004. He currently works as a deputy sheriff for a large agency. During his career he has worked as a patrol officer, SWAT entry, SWAT sniper, Field Training Officer, Defensive Tactics Instructor, Firearms Instructor, Taser Instructor, Patrol Tactics Instructor, and Reality Based Training Instructor.

Jeff is an instructor for our handgun and rifle courses and a coach for our combatives and tactics courses.

In addition to training with InSights and his agency, Jeff has trained with professionals across the industry including: TMACS Inc, Langdon Tactical, Shivworks, Way of the Gun, Vogel Dynamics, Tap-Rack Tactical, EAG Tactical, Trident Concepts, International Tactical Training Seminars, Ken Hackathorn, Armiger, and CombatSpeed LLC.

Kristina Kelly

Kristina Kelley has taught for InSights since 2009. She is the lead instructor for our women's firearms courses and is also a primary instructor for Concealed Firearms Permit Class for Utah, and Basic Handgun Safety and Responsibility.

Kristina is a certified firearms instructor with the Washington State Criminal Justice Training Commission, a certified NRA instructor, and a certified rape prevention instructor (American Women's Self Defense Association.)

While away from InSights she is an avid distance runner and has run dozens of marathons.

Alan Hines

Alan Hines has been an InSights instructor since 2005. He teaches Basic Handgun, Basic Long Gun, Utah CFP, Handgun Safety & Marksmanship, Glock Maintenance, and coaches most other InSights classes. He has completed the InSights firearms, combatives, and tactics curriculum, and has been a practitioner at the National Tactical Invitational.

He is certified by the WSCJTC as a Firearms Instructor, by the NRA as a Pistol Instructor, by Glock as an Armorer, and by Utah as a Concealed Firearms Permit Instructor.

Alan is also a document guy and assists InSights with their print materials.

Ray Porthen

Ray Porthen is a certified firearms instructor by the Washington State Criminal Training Commission. He is also certified through Remote Medical International as a Wilderness First Responder.

He has had the privilege of training with a variety of renowned companies and instructors, including Pat McNamara of TMACS INC, Firearms Academy of Seattle, Magpul, 10-8 Performance, Crisis Medicine, as well as completing several courses through InSights Training Center.

Ray is now an instructor for our handgun and rifle courses as well as a coach for our combatives and tactics courses.

Jamin Kortegard

Jamin Kortegard is a primary instructor for Basic Handgun, and is an assistant instructor and coach for our private sector combatives, firearms, and tactics courses.

Jamin is certified as a Firearms Instructor by the Washington State Criminal Justice Training Commision and as a Pistol Instructor by the National Rifle Association. He has trained extensively with InSights since 2003.

David Roberts

David Roberts has been studying martial arts since 1978, training in Tae Kwon Do, Aikido, Ben Der Wing Chun, Al Dacascos Won Hop Kuen Do, Danzan Ryu Jiu-Jitsu and Judo. The last 8 years have been spent training in Boxing, Brazilian Jiu-jitsu, Thai/Cambodian Boxing, and being certified as an instructor in the World War II system of American Combatives under John Kary.

He has attended all of the InSights handgun courses and has been formally trained in the Applegate method of Point Shooting.

David Sharp

David Sharp has been training with InSights since 2003, is a former WSCJTC and NRA certified Firearms Instructor, and is an experienced coach for our tactics, combatives, and law enforcement courses. David's foundation comes from his prior 7 years as a Reserve Police Officer for a major metropolitan police department. He is a graduate of InSights Tactical Handgun Instructor, Active Shooter Response Instructor, Dynamic Clearing, and Tactical Combat Casualty Care law enforcement schools, and has successfully trained in nearly every InSights private sector course. David is also a part-time Captain and Training Officer for a local county Fire Department, and medically is a WA-Certified EMT and NAEMT-Certified TECC (Tactical Emergency Casualty Care) and PHTLS (Pre-Hospital Trauma Life Support) Provider. Outside of InSights, David leads information technology programs in Precision Medicine.