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[The Cold Case of Leo Beauregard: A Beer Can, a Broken Chain of Custody, and Justice After 30 Years]-[The Daily Planner (Leo Beauregard)]

Anatomy of Murder · B2 · 2024-06-04

True crime
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📋 Summary

The Unsolved Murder of Leo Beauregard: A Decades-Long Pursuit of Justice

In June 1990, 68-year-old World War II veteran Leo Beauregard was found brutally murdered in his North Palm Beach apartment. What appeared to be a peaceful retirement for a widower ended in violence, as Leo was discovered with a fatal stab wound to his neck. Despite the absence of forced entry and the lack of immediate suspects, investigators were faced with a baffling crime scene: an apartment where the victim had likely been enjoying a drink before being caught off guard, stabbed, and left to die.

The Crucial Evidence: A Beer Can

As investigators processed the scene, they noted blood spatter everywhere—on walls, furniture, and the victim's drinking glass. However, one item stood out: an empty beer can on the table that remained completely free of blood. This observation suggested that the killer had likely stayed in the apartment after the murder, potentially even drinking a beer while the victim lay dying. This "cold-blooded" detail became the focal point of the investigation. Despite the lack of DNA technology at the time, investigators had the foresight to collect the can, a decision that would prove pivotal nearly three decades later.

A Botched Investigation and the "Psychic" Intervention

In 1991, as the case went cold, law enforcement made a highly controversial decision to involve a psychic. Detectives mailed the evidence—the beer can—to a civilian medium. This act created a significant "break in the chain of custody," a move that would normally jeopardize a trial. Prosecutors later had to grapple with how to present this evidence to a jury without allowing the defense to use the police's procedural errors to dismiss the case entirely. As prosecutor Aletha McRoberts noted, the strategy was to be "very straightforward with the jury," acknowledging the mistakes while relying on common sense to explain why the DNA evidence remained valid.

The 2018 Breakthrough: DNA and CODIS

For 28 years, the case remained dormant until a 2018 investigation into another gruesome murder—involving a suspect who had dismembered his roommate—revealed a link to Leo’s case. Although that specific suspect was not the killer, the renewed interest led investigators to upload the DNA profile from the beer can into the National CODIS database. In 2019, they received a match: Mark Gribben, a career criminal who had been on parole in Palm Beach County at the time of the murder.

Establishing the Motive and Securing a Conviction

Investigators utilized Leo’s personal calendar to piece together his relationship with Gribben. The calendar contained Gribben’s birthday and notations of small monetary gifts, suggesting that Leo, perhaps driven by loneliness, had been providing financial support to the younger man. When Gribben was confronted, he denied knowing Leo, a lie that the prosecution successfully framed as "consciousness of guilt."

By comparing the DNA on the beer can to a fresh sample from Gribben, and using visual aids to demonstrate that the can could only have been placed there after the fatal attack, the prosecution built a compelling circumstantial case. Despite the defense's arguments regarding the broken chain of custody and the prejudicial nature of Gribben’s prior parole status, the jury found him guilty. He was sentenced to life in prison, bringing a long-delayed sense of justice to a case that many had forgotten.

Conclusion: The Vulnerability of the Lonely

Leo Beauregard’s murder serves as a grim reminder of how loneliness can make individuals vulnerable to exploitation. His generosity was met with greed and violence, a tragedy that remained unsolved for far too long. However, the dedication of investigators like Aletha McRoberts, who handled over 300 homicide cases, ultimately ensured that the truth prevailed. The conviction of Mark Gribben stands as an affirmation that, even when forensic procedures are imperfect, a jury’s common sense can still deliver justice.

🎯Key Sentences

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I have to give them a lot of credit for forward thinking.
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Everything seemed like it was lining up.
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We let them know it all up front, you know, so that it was not news.
4
That is a secondary test.
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They hold your feet to the fire.
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📝Key Phrases

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put something behind someone
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up for something
3
caught off guard
4
zero in on
5
not atypical
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📖 Transcript

We worried about that because we basically had no eyewitness and no confession, no admission, no proof of a solid motive.
Basically, we had DNA on a beer can.
I'm Scott Weinberger, investigative journalist and former deputy sheriff.
I'm Anastasia Nicolazzi, former New York City homicide prosecutor and host of Investigation.
Discovery's True Conviction.
And this is Anatomy of Murmur.

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