Inside the mind of a mass killer

Welcome to the official channel of John E. O’Rourke – True Crime Historian, Security & Law Enforcement Expert, and Author.

This channel takes you inside the world of true crime investigations, police work, and the criminal justice system. We explore real cases, analyze bodycam footage, and break down police tactics and decision-making—highlighting both critical mistakes and professional excellence.

🔍 What You’ll Find on This Channel:

True crime case analysis and cold case breakdowns
Police bodycam footage analysis and use-of-force reviews
Law enforcement errors, misconduct, and best practices
Commentary on controversial police incidents and high-profile arrests
Interviews with crime authors, former detectives, and public safety professionals

Behind-the-scenes insight into criminal investigations and policing
Advice for law enforcement officers transitioning into private security careers
Deep dives into officer training, police culture, and leadership challenges

Whether you're a true crime enthusiast, retired or active-duty officer, criminal justice student, or concerned citizen, this channel delivers real-world law enforcement insights, fact-based analysis, and a balanced perspective on the complex world of policing and crime in America.

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📍 Site Visit: The Scene of the USPS Double Murder by the Ninja Killer | Joseph M. Harris True Crime Case

In this video, we travel to "Ridgewood, New Jersey", to visit the exact location where "Joseph M. Harris", known as the "Ninja Killer", brutally murdered "two United States Postal Service workers" in 1991. This chilling case remains one of the most infamous incidents of workplace violence in USPS history.

Harris, a former postal employee, dressed in black tactical gear—armed with an Uzi and samurai sword—entered the "Ridgewood Post Office" and opened fire. Just a day earlier, he had murdered his former supervisor and her fiancé in Wayne, NJ.

Join me as I explore the scene of this horrific act, provide historical context, and uncover what led Harris to commit these calculated murders. This site visit brings you face-to-face with the real locations behind one of New Jersey’s most shocking true crime cases.

🔔 Subscribe for more in-depth true crime reporting, cold case deep dives, and law enforcement insights.

#TrueCrime #ninjakiller #JosephHarris #USPSMurders #CrimeSceneVisit #NewJerseyTrueCrime #workplaceviolence #ridgewoodnj #truecrimeyoutuber #PostalKiller #crimehistory #masskillerin
00:00 Introduction
00:15 Commentary
00:49 Double Homicide Site Location
03:02 Ending Comments

Видео Inside the mind of a mass killer канала True Crime & Police Cases – Trooper John O’Rourke