IV – Know

Christian Warrior Training’s Database Analysis of Houses of Worship Active Killer Incidents

Keith Graves of Christian Warrior Training has compiled a database of 30 verified active shooter and deadly force incidents at houses of worship in the United States from 1999 to 2026.

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He says, “Every entry is sourced. Every weapon caliber, service phase, casualty count, and motive category has been checked against primary reporting. Where data was not publicly confirmed, it is listed as unconfirmed rather than estimated.”

[ Read the SemperVerus article, A List of Active Killer Incidents at Houses of Worship and Religious Schools ]

Here Are His 6 Findings:

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Lt. Col. Dave Grossman on 3 Types of Aggression

Lt. Col. Dave Grossman is a US Army Ranger, paratrooper, and former West Point psychology professor. He holds a Black Belt in Hojutsu—the martial art of the firearm—and has been inducted into the USA Martial Arts Hall of Fame. His distinguished military and academic career has made him one of the foremost authorities on human aggression, violence, and the psychological effects of combat.

[ Bookmark the SemperVerus CHURCH SECURITY INTELLIGENCE CLIPBOARD ]

He’s the author of more than a dozen books, including On Spiritual Warfare, which is described this way:

“Evil from the world, the flesh, and the devil preys on those we love and stalks our every move. If we’re not fighting back, we’re losing. In On Spiritual Warfare, the sequel to On Spiritual Combat, Dave Grossman and Chris Pascoe guide Christians through operations of advanced spiritual warfare. Battle the forces of evil with 22 intensely practical WARNORDS, or military “warning orders,” drawn from the writings of Luther and Erasmus.

[ Read the SemperVerus article, Self-Defense Body Armor for Spiritual Warfare ]

“These strategic warnings and tactical orders will equip you to

  • recognize and fearlessly confront evil,
  • confess and repent of your own sin,
  • serve others as you become sanctified, and
  • mature into a triumphant spiritual warrior of God.

[ Read the SemperVerus article, Self-Defense In Spiritual Warfare: Know Your Enemies ]

“Filled with Scripture, powerful hymns, battle prep questions, and practical direction, On Spiritual Warfare is the map you need to successfully complete your mission from God. You become victorious as a Christian by living virtuously. Victory through virtue!”

[ Read the SemperVerus article, The Ministry of Protection: Why Church Safety Teams Matter and How Serving in the Ministry of Protection Brings Clarity to the Calling ]

The following is an excerpt appropriate for church security team members (“sheepdogs” as Lt. Col. Grossman calls them):

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4 Common Ways Predators Test You

Stephen Mazzagatti is a retired New Jersey State Trooper, firearms instructor, founder and safety consultant of Martell Training Group, and author of Defend Confidently: Elevate Situational Awareness, Secure Your Personal Safety, and Master Concealed Carry. His police career included the specialties of Aviation, Computer Crime (Cyber and Internet Crimes Against Children), Firearms, Field Operations, Deployment Services (Homeland Security missions), Governmental Integrity Unit, and Business Integrity Unit.

[ Read the SemperVerus article, Don’t Be a Victim of Crime: Learn How to Refuse To Be A Victim® ]

In the video below, he describes Compliance Testing: four common scripts predators with a plan to break down your guard might use to gauge how vulnerable you are and if you’re an easy potential victim.

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Counterterrorism: Violent Extremist Mobilization Indicators

The US Violent Extremist Mobilization Indicators, 2025 Edition is a PDF pamphlet published by the National Counterterrorism Center (NCTC), Federal Bureau of Investigation (FBI), and Department of Homeland Security (DHS) to inform law enforcement, terrorism prevention practitioners, other first responders, community leaders, as well as the general public about both threats of violence and contextual behaviors that suggest an individual is mobilizing to violence.

[ Read SemperVerus articles on the topic of THREAT ANALYSIS ]

This is a helpful situational awareness resource for church security teams and self-defenders in general for identifying discernible pre-indicator signs of criminal and terrorist aggression.

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