Washington Navy Yard


Government/Mission Critical & Inside Attacker Simulation



At 0744 on the morning of September 16, 2013, Aaron Alexis, an employee of The Experts, Inc.,
drove through the 6th Street Gate onto the Washington Navy Yard (WNY). He used his valid
Common Access Card to gain access to the base. He parked in Building 28, a garage across the
street from Building 197, the Naval Sea Systems Command (NAVSEA) Headquarters. At 0802,
Alexis entered Building 197, where he had been tasked to perform updates to classified
computers, carrying a concealed, sawed-off shotgun. Alexis used a valid temporary access badge
to go through the electronic badge reader and past the guard station. He proceeded to the fourth
floor and entered a restroom. At 0815, he emerged from the restroom carrying the sawed-off
shotgun and began shooting. The initial report of an active shooter was made at 0816. Law
enforcement forces from the WNY and external agencies responded quickly and effectively to
contain and eliminate the threat. Alexis was shot and killed at 0925. Before he was stopped, he
had killed twelve personnel and wounded four more.

Following the release of reports about this incident, Intrusion Technologies LLC conducted an
analysis based on the timeline provided in the report to illustrate how our victim-initiated
mitigation product (Active Intruder Mitigation System) would have functioned. Based on the
analysis, the following will show that victim-initiated mitigation, had it been available, would
have saved lives.

It is not the intent of the founders of Intrusion Technologies to point fingers of blame in these situations or use tragic situations to their benefit. All experienced public safety providers, the founders believe strongly in using the lessons of history in violent intrusions and attacks to help prevent them in the future. All of our hearts go out to the families of those who lost loved ones in these senseless attacks.

Timeline of events
Navy Yard Dod Narrative

Alexis entered the parking garage Building 28 at Washington Navy Yard, located directly across from Building 197.

Alexis entered the Building 197 lobby using the electronic badge reader farthest away from the contract security guard station with a bag and carrying a concealed shotgun and ammunition. He used a valid temporary building pass for entry.

Alexis exited the 4th floor bathroom and began shooting people.

Naval District Washington (NDW) Region Dispatch Center received a phone call reporting an active shooter on the fourth floor of Building 197.

NDW Region Dispatch Center notified NDW Fire and Emergency Services and the Navel Support Activity Washington (NSAW) Naval Support Facility (NSF) of the shooting. The Washington, District of Columbia (DC) Metropolitan Police Department (MPD) was notified of the shooting by NDW Region Dispatch Center and 911 calls. NSAW activated the Emergency Operations Center (EOC) and the NDW Regional Operations Center (ROC) was notified of an active shooter.

NSF Chief of Police and two NSF members arrived at Building 197 andimmediately entered the building. They were the first law enforcement officers to arrive. The officers proceeded directly to the 4th floor where the shots had been reported. Within minutes, eight additional NSF members entered Building 197.

Alexis fires his last fatal gunshot.

Aaron Alexis was shot and killed.

Timeline of events
AIMS Active Response

Alexis is seen by an employee of Building 197 in the mens’ bathroom taking a shotgun out of a duffle bag.

Witness runs to office and activates AIMS in hisoffice area. All rooms arelocked by Mag-Lock. Law enforcementis notified, the facility-wide alarm sounds. The video feed in the command
center opens to 4th floor hallway.

Staff Identifies Alexis with shotgun in the hallway of floor 4.

Trained staff activate disorienting fog into 4th floor hallway to inhibit attacker’s visibility.

Alexis, has no targets available, possibly engaged by L.E.



As the events that unfolded on September 16, 2013, show, violent attacks can and do occur by persons that have legitimate access to high-occupancy facilities. As has been proven time and again, relying on an armed response to stop an attack is not an effective means of mitigating the fatalities and injuries associated with active shooter events. Based on reported facts (Hubbard, 2012), the average duration of the active shooter events range from 4 to 11 minutes. The average response time to armed engagement is 8 to 20 minutes. Almost all fatalities associated with the active shooter event occur within the first four minutes. As demonstrated in the timeline, Victim- initiated Mitigation Systems not only provide almost immediate protection, it reduced the attack timeline significantly. The most effective means of saving lives in violent attacks occurring in these high-occupancy facilities is through victim-initiated mitigation. For additional information please contact:







11010 Monroe Rd., Suite A, Matthews, NC, 28105

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LLC. All rights reserved.


11010 Monroe Rd., Suite A
Matthews, NC 28105