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Zone 7 with Sheryl McCollumAuthor: iHeartPodcasts and CrimeOnline Language: en-us Genres: True Crime Contact email: Get it Feed URL: Get it iTunes ID: Get it Trailer: |
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The Derwin Brown Assassination: Dale Cardwell on Corruption, Retaliation, and Murder in DeKalb County
Episode 1
Wednesday, 4 March, 2026
A late-night stop at a Dairy Queen led to one of the biggest stories of Dale Cardwell’s career. In this episode of "Zone 7," Sheryl McCollum talks with Dale about the investigation that uncovered corruption inside the DeKalb County Sheriff’s Office, exposed deputies working on the clock for Sidney Dorsey, and helped fuel a political shakeup that ended in the murder of Sheriff-elect Derwin Brown. Dale shares how the story unfolded, the danger it brought to his own family, and the break that finally helped tie the killing back to Sidney Dorsey. Guest Bio: Dale Cardwell is a six-time Emmy Award-winning journalist, consumer investigator, and founder of TrustDALE. He is known for helping expose scams, political corruption, and government waste. He teamed up with Clark Howard and now hosts Inside Investigations, which airs on more than 100 television markets nationwide. About the Host 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 four 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 include The Boston Strangler, Natalie Holloway, and Tupac Shakur. Her work on the Moore’s Ford Bridge lynching led to her Emmy Award for “CSI: Atlanta” and induction into the National Law Enforcement Hall of Fame in 2023. Social Links: Email: coldcase2004@gmail.com X: @zone7squad Facebook: @sheryl.mccollum Instagram: @officialzone7podcast 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. Enjoying Zone 7? Leave a rating and review where you listen to podcasts. Your feedback helps others find the show and supports the mission to educate, engage, and inspire. Highlights: (0:00) Sheryl McCollum introduces Dale Cardwell and the Dairy Queen stop that led to one of DeKalb County’s biggest corruption cases (1:15) Dale explains the system he built after years of consumer reporting, focused on helping consumers avoid scams (3:30) Deputies are accused of clocking in at the jail while working private security for Sheriff Sidney Dorsey (6:15) Surveillance, inside sources, and an open-records request lead to the first major break in the story (9:30) The reporting lands just before the election and helps shift attention toward challenger Derwin Brown (12:30) The corruption picture widens with allegations involving sexual harassment and sex-for-favors allegations, fake badges, and inmate labor (15:00) Dale recalls the night police came to his door after Derwin Brown was murdered (19:00) Dale learns he is also believed to be on the hit list, and he and his family are placed under protective custody (23:30) An interview moment raises new questions about Sidney Dorsey’s knowledge of the conspiracy (27:15) A witness’s note on a napkin helps lead investigators back to the murder plot (28:30) Patrick Cuffy describes Dorsey giving the kill order on paper, then tearing it up and swallowing it (33:30) Dale reflects on the cost of the case and his bond with the Brown family See omnystudio.com/listener for privacy information.
