Geographic profiling is one of the most powerful investigative tools in modern criminal analysis and in this episode of True Crime with the Sarge – The Audio Files, we go deep into the science behind it.

Retired NYPD Sergeant and host Joseph Giacalone sits down with geographic profiling expert Doug MacGregor to break down how offender location patterns, crime scene clustering, journey-to-crime behavior, and spatial analysis help investigators narrow suspect pools and prioritize leads. From serial offenders to cold cases, geographic profiling blends criminology, behavioral science, mapping technology, and investigative strategy to reveal what random crime scenes often conceal.

Doug explains how geographic profiling algorithms work, how law enforcement agencies apply crime mapping and predictive analytics, and how this methodology has supported major investigations. We also discuss the psychology behind offender comfort zones, buffer zones, anchor points, and how small geographic details can shift the trajectory of a case.

If you are in law enforcement, part of the true crime community, a journalist covering crime, or a family member seeking answers in an unsolved case, this episode offers critical insight into how modern investigative tools can bring structure to chaos.

This is a must-listen deep dive into spatial forensics, criminal behavior analysis, cold case strategy, and the evolving role of AI in geographic profiling.

🎧 Listen now and discover how location can expose what motive alone cannot.

Step inside a deep investigative breakdown as True Crime with the Sarge welcomes filmmaker Josh Zeman, director of The Killing Season, for a focused analysis of alleged Long Island Serial Killer Rex Heuermann. This episode examines the emerging evidence, investigative leads, and behavioral indicators shaping one of the most closely followed serial homicide cases in America.

The discussion explores reported crime scene details, including the discovery of Mindhunter by former FBI profiler John E. Douglas, and what that could suggest about offender psychology, criminal profiling, and decision-making patterns in complex serial investigations.

Listeners gain expert perspective on cold case methodology, forensic reasoning, and the analytical approach homicide detectives use to interpret behavioral evidence. This episode is essential listening for anyone tracking developments in the Long Island Serial Killer investigation, studying criminal psychology, or interested in how real investigators evaluate high-profile serial cases.

In this episode of True Crime with the Sarge, retired U.S. Secret Service agent Brad Beeler joins the show to discuss his book Tell Me Everything and the real-world investigations that shaped his career. He shares behind-the-scenes insight into protective intelligence, high-stakes decision making, and the communication skills necessary to have the investigative mindset used to prevent threats before they unfold.

Tell Me Everything: A Secret Service Agent’s Proven Strategies for Earning Trust, Revealing the Truth, and Communicating with Anyone is available wherever books are sold. 

In this episode of True Crime with the Sarge, I’m joined by acclaimed filmmaker and Long Island Serial Killer expert Josh Zeman for a deep legal breakdown of the latest defense motions filed on behalf of Rex Heuermann, the accused Long Island Serial Killer.

We walk through what the defense is arguing, why these motions matter, and how they could impact the prosecution’s case moving forward. From evidentiary challenges and constitutional claims to broader strategy, this conversation strips away the legal jargon and explains what’s really happening inside the courtroom.

Josh brings his unmatched historical knowledge of the LISK investigation, while I break down the motions from a law enforcement and investigative perspective. If you’re following the Rex Heuermann case, the Gilgo Beach murders, or the legal mechanics behind high-profile serial killer prosecutions, this episode is essential listening.

Topics covered include:

• Rex Heuermann defense strategy explained

• Key motions and legal arguments in the LISK case

• What the defense wants suppressed and why

• How judges typically rule on motions like these

• What this means for the future of the Long Island Serial Killer prosecution

Join us on this must-hear episode of True Crime with the Sarge as best-selling author Gerald Posner breaks down the most recent U.S. Government release of documents related to the Assassination of President John F. Kennedy. Posner offers expert analysis on the newly released data from the National Archives and explains what this information reveals about Lee Harvey Oswald, CIA files, FBI records, and long held theories that have shaped public understanding for decades.

In this episode we explore what the latest JFK files add to the historical record and separate fact from fiction using verified evidence and expert insight. Gerald Posner discusses how this data impacts ongoing debates, the role of intelligence agencies before and after November 22 1963, and what remains unresolved. Listeners will gain access to fresh perspectives on motive, timeline, and official explanations.

If you care about historical truth and want analysis grounded in research then this conversation with Gerald Posner is essential listening. We break down complex material in clear language and guide you through what matters most in the newest JFK data dump from the U.S. Government.

In this gripping audio podcast, we break down the Top 5 Cold Cases Solved in 2025, examining how decades old mysteries were finally unraveled through persistence, advancing forensic science, DNA genealogy, and relentless investigative work.

From long forgotten homicide files to missing persons cases that haunted families for generations, this episode takes you inside the breakthroughs that changed everything. You will hear how investigators revisited stalled evidence, how new technology exposed hidden truths, and how modern detectives brought long awaited answers to victims’ families.

Each case is analyzed with a focus on timelines, suspects, forensic developments, and the exact moment that led to justice. This podcast is essential listening for true crime fans fascinated by cold cases, unsolved murders, criminal investigations, and real world detective work.

Whether you follow cold case breakthroughs, wrongful convictions, or the evolution of modern policing, this episode delivers in depth storytelling with facts that matter.