Lt. Colonel Dave Grossman, U.S. Army (retired), is one of the world’s foremost experts in the field of human aggression and the roots of violence and violent crimes. Colonel Grossman is an internationally recognized scholar, author, soldier and speaker, and owner of Killogy.com.

Colonel Grossman is a former West Point psychology professor and a Pulitzer prize-nominated author where his books are mandated reading material for the U.S. Marine Corps and the FBI Academy. Colonel Grossman has served as a trainer and keynote speaker for all major national and international law enforcement training organizations and has taught the representatives of literally thousands of federal and regional agencies in the United States, Canada, New Zealand, Australia, and over a dozen foreign nations.

Colonel Grossman’s research has been cited in a national address by the President of the United States. In the wake of the 9/11 terrorist attacks, Colonel Grossman is on the road nearly 300 days a year speaking to and training schools, businesses, churches, and law enforcement organizations educating them on our country’s #1 act of domestic terrorism: the active killer.

Colonel Grossman is a strong supporter of the Hero911 Network, and the Guard911 services that work in concert with it, and speaks on the services at each of his engagements. He relates the Hero911 and Guard911 services to the fire alarm that is mandated in every structure in our nation.