In this week’s Crime Roundup, Sheryl McCollum and Joshua Schiffer Break down the federal hearing surrounding Luigi Mangione, the suspect accused of assassinating UnitedHealthcare CEO Brian Thompson in December 2024.

What started as a five-day manhunt has transformed into an instructive case, complete with missed warrants, coached testimony, and evidence on the verge of being thrown out. Sheryl and Joshua examine how procedural missteps could weaken a potential death penalty case, and why “get a warrant” isn't just good advice; it's the foundation of justice.

They then turned their attention to Massachusetts, where the trial of Brian Walshe, who is accused of killing and dismembering his wife, reveals how arrogance, lies, and a trail of Google searches can expose a killer's truth.

Highlights:

• (0:00) Welcome to Crime Roundup with Sheryl McCollum and Joshua Schiffer

• (0:15) "99 percent of the time, you need a warrant... it won’t hurt your case if you get one and don’t need it.”

• (4:00) Coached testimony and the danger of tailoring officer statements for admissibility

• (7:30) What happens when training, procedure, and pressure collide in the courtroom

• (9:00) How early media leaks and “pre-trial publicity” can poison a case before it begins

• (10:30) The potential collapse of key evidence and its impact on death penalty eligibility

• (12:15) The rules of criminal procedure and what it means when they don’t apply equally

• (17:15) The defense’s dream scenario: getting the weapon suppressed because of a“bad stop”

• (17:45) The Brian Walshe trail and the anatomy of a cover-up

• (19:30) Walshe’s “woke up and she was dead” defense and why it’s collapsing in court

• (21:45) The digital trail: how Google searches reveal motive, method, and mindset

• (23:00) Closing thoughts: why “get a warrant” isn’t optional, it’s the rule of law




About the Hosts

Joshua Schiffer is a veteran trial attorney and one of the Southeast’s most respected legal voices. He is a founding partner at ChancoSchiffer P.C., where he has litigated high-stakes criminal, civil rights, and personal injury cases for over two decades. Known for his bold courtroom presence and ability to clearly explain complex legal issues, Schiffer is a frequent media contributor and a fearless advocate for accountability.



Sheryl “Mac” McCollum is an active crime scene investigator for a Metro Atlanta Police Department and the director of the Cold Case Investigative Research Institute, which partners with colleges and universities nationwide. With more than 4 decades of experience, she has worked on thousands of cold cases using her investigative system, The Last 24/361, which integrates evidence, media, and advanced forensic testing. Her work on high-profile cases, including The Boston Strangler, Natalie Holloway, Tupac Shakur and the Moore’s Ford Bridge lynching, earned her an Emmy Award for CSI: Atlanta and induction into the National Law Enforcement Hall of Fame in 2023.



Preorder Sheryl’s upcoming book, Swans Don’t Swim in a Sewer: Lessons in Life,Justice, and Joy from a Forensic Scientist, releasing May 2026 from Simon and Schuster.

https://www.simonandschuster.com/books/Swans-Dont-Swim-in-a-Sewer/Sheryl-Mac-McCollum/9798895652824

Stay Connected

Subscribe using your favorite podcast platform and leave a review to support the show. Have acase or topic you’d like Sheryl and Joshua to cover?

Email coldcase2004@gmail.com

Follow the Hosts:

• Sheryl on X: @ColdCaseTips

• Facebook: @sheryl.mccollum

• Joshua on X and Instagram: @lawyerschiff

In this week&rsquo;s Crime Roundup, Sheryl McCollum and Joshua Schiffer Break down the federal&nbsp;hearing surrounding Luigi Mangione, the suspect accused of assassinating UnitedHealthcare&nbsp;CEO Brian Thompson in December 2024.
What started as a five-day manhunt has transformed into an instructive case, complete with missed warrants, coached testimony, and evidence on the verge of being thrown out. Sheryl and Joshua examine how procedural missteps could weaken a potential death penalty case, and why &ldquo;get a warrant&rdquo; isn't just good advice; it's the foundation of justice.
They then turned their attention to Massachusetts, where the trial of Brian Walshe, who is accused of killing and dismembering his wife, reveals how arrogance, lies, and a trail of Google searches can expose a killer's truth.
Highlights:
&bull; (0:00) Welcome to Crime Roundup with Sheryl McCollum and Joshua Schiffer
&bull; (0:15) "99 percent of the time, you need a warrant... it won&rsquo;t hurt your case if you get one&nbsp;and don&rsquo;t need it.&rdquo;
&bull; (4:00) Coached testimony and the danger of tailoring officer statements for admissibility
&bull; (7:30) What happens when training, procedure, and pressure collide in the courtroom
&bull; (9:00) How early media leaks and &ldquo;pre-trial publicity&rdquo; can poison a case before it begins
&bull; (10:30) The potential collapse of key evidence and its impact on death penalty eligibility
&bull; (12:15) The rules of criminal procedure and what it means when they don&rsquo;t apply equally
&bull; (17:15) The defense&rsquo;s dream scenario: getting the weapon suppressed because of a&ldquo;bad stop&rdquo;
&bull; (17:45) The Brian Walshe trail and the anatomy of a cover-up
&bull; (19:30) Walshe&rsquo;s &ldquo;woke up and she was dead&rdquo; defense and why it&rsquo;s collapsing in court
&bull; (21:45) The digital trail: how Google searches reveal motive, method, and mindset
&bull; (23:00) Closing thoughts: why &ldquo;get a warrant&rdquo; isn&rsquo;t optional, it&rsquo;s the rule of law 
About the Hosts
Joshua Schiffer is a veteran trial attorney and one of the Southeast&rsquo;s most respected legal&nbsp;voices. He is a founding partner at ChancoSchiffer P.C., where he has litigated high-stakes&nbsp;criminal, civil rights, and personal injury cases for over two decades. Known for his bold&nbsp;courtroom presence and ability to clearly explain complex legal issues, Schiffer is a frequent&nbsp;media contributor and a fearless advocate for accountability. 
Sheryl &ldquo;Mac&rdquo; McCollum is an active crime scene investigator for a Metro Atlanta Police&nbsp;Department and the director of the Cold Case Investigative Research Institute, which partners&nbsp;with colleges and universities nationwide. With more than 4 decades of experience, she has&nbsp;worked on thousands of cold cases using her investigative system, The Last 24/361, which&nbsp;integrates evidence, media, and advanced forensic testing. Her work on high-profile cases,&nbsp;including The Boston Strangler, Natalie Holloway, Tupac Shakur and the Moore&rsquo;s Ford Bridge&nbsp;lynching, earned her an Emmy Award for CSI: Atlanta and induction into the National Law&nbsp;Enforcement Hall of Fame in 2023. 
Preorder Sheryl&rsquo;s upcoming book, Swans Don&rsquo;t Swim in a Sewer: Lessons in Life,Justice, and Joy from a Forensic Scientist, releasing May 2026 from Simon and Schuster.
<a href="https://www.simonandschuster.com/books/Swans-Dont-Swim-in-a-Sewer/Sheryl-Mac-McCollum/9798895652824">https://www.simonandschuster.com/books/Swans-Dont-Swim-in-a-Sewer/Sheryl-Mac-</a><a href="https://www.simonandschuster.com/books/Swans-Dont-Swim-in-a-Sewer/Sheryl-Mac-McCollum/9798895652824">McCollum/9798895652824</a>
Stay Connected
Subscribe using your favorite podcast platform and leave a review to support the show. Have acase or topic you&rsquo;d like Sheryl and Joshua to cover?
Email <a href="mailto:coldcase2004@gmail.com">coldcase2004@gmail.com</a> Follow the Hosts:
&bull; Sheryl on X: @ColdCaseTips
&bull; Facebook: @sheryl.mccollum
&bull; Joshua on X and Instagram: @lawyerschiff

Work a cold case alongside investigator Sheryl “Mac” McCollum, Director of the Cold Case Investigative Research Institute. Every week, Sheryl dives into her cold case files alongside accomplished guests to look for clues into unsolved murders, missing people, and more. This ain’t just a podcast but a war room. Sheryl opens her cold case files, her heart and her little black book! You will quickly realize Zone 7 is not a place but a lifestyle!

Work a cold case alongside investigator Sheryl “Mac” McCollum, Director of the Cold Case Investigative Research Institute. Every week, Sheryl dives into her cold case files alongside accomplished guests to look for clues into unsolved murders, missing people, and more. This ain’t just a podcast but a war room. Sheryl opens her cold case files, her heart and her little black book! You will quickly realize Zone 7 is not a place but a lifestyle!

Zone 7 with Sheryl McCollum

Procedural Chaos: Inside the Mangione Hearing That’s Putting Police Training on Trial

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/2d23a9c1-329f-44c1-8fe8-b3a90105994a/transcript

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