Incidents, patterns and the analysis underneath them. Public record, doctrinally useful, and written as the events were understood at the time.

A note on how these are written: incidents, schools, dates and locations appear because they are public record and because prevention cannot be taught without them. Individual victims do not. Neither do attackers. That is a deliberate choice and it does not change what the cases teach.

What the research shows

The behavior comes before the event, every time. These are the patterns worth knowing before anything happens.

• Understanding Active Shooter Events
• Building on an Active Shooter Profile
• Five Phases of an Active-Shooter, with Shared Video
• Active Shooter Statistics to think about… Are you prepared?
• Active Shooter Events, more common than not?
• Active Shooter Incidents
• Why Federal Response Time Is the Wrong Number to Plan Around
• Attackers Do Not Snap: What Behavioral Science Sees Before an Attack
• What Drills Cannot Rehearse

Case studies

Specific events, examined for what went wrong and what would have changed the outcome.

• Terrorism in New Orleans
• Northside Medical Midtown Active Shooter
• Parkland High School Massacre
• When Violence Visits
• Active Shooter in Another Hospital
• Shooting in Restaurant Active Shooter Expert Chris Grollnek’s Opinion
• Several Dead in Minneapolis Workplace Active Shooter Incident
• Chris Grollnek points out another active shooter within two weeks
• Grollnek Family Vacation Day Ends in Suspect Dead After Active Shooter
• City of Buffalo lags on compliance with workplace violence rules

Threat types and methods

• Tactically Focused, Edged Weapon Attacks
• FBI’s List Of Terrorist Camps In America
• Dealing with Threats of Explosive Devices in American Cities
• Rapid Feedback Evaluation Process and Domestic Terrorism Prevention
• Gun Owners and Mass Shootings
• Active Shooter Weapons of Choice in the Workplace

Training and prevention

• Vetting Active Shooter Experts
• Active Shooter Prevention Project Solutions
• Active Shooter Prevention Training Prevents School Shootings
• PSA on Active Shooter Prevention
• TSA Airport Active Shooter Training Video
• Active Shooter Training Part One
• Active Shooter Prevention for Schools
• Active Shooter Video Question Answered by Chris Grollnek
• Active Shooter Training Video
• Active Shooter Prevention is More Than a Legal Mandate
• Active Shooter Expert Chris Grollnek the Importance of Policy Manual’s
• Active Shooter Safety Tips by: Chris Grollnek

Workplace violence

• Active Shooter Training Addresses Workplace Violence
• Try and Answer the Following Questions Regarding Work Place Violence?

From the record

• Active Shooter Prevention Expert Chris Grollnek in CNN Web News
• A Possible Sign of Active Shooter Events by Chris Grollnek
• Chris Grollnek and the Active-Shooter Prevention Vision, the Beginning
• Chris Grollnek Active Shooter Prevention Expert, Published
• Active Shooter Public Safety Announcement Video Chris Grollnek
• Training for a Workplace Violence Incident
• The beginning days of Active-Shooter and Workplace Violence Training Concepts

Where the analysis leads

Every case above has the same shape. There was a runway, somebody saw part of it, and the reporting or the response to that reporting failed before the day arrived. That runway is where prevention lives, and it is the whole argument behind the P.R.O. Model™.