Sheryl “Mac” McCollum is a three-time nominated Emmy Award winning CSI from CSI Atlanta, National Law Enforcement Hall of Fame 2023 Inductee, CSI for WBS Ch2 Action News, Director of the Cold Case Investigative Research Institute (CCIRI), a writer for CrimeOnline, Forensic and Crime Scene Expert for Crime Stories with Nancy Grace, and a working CSI for a Metro Atlanta Police Department. Sheryl holds a master’s degree in Criminal Justice with an emphasis on Policing. She is the co-author of the textbook., Cold Case: Pathways to Justice and host of the podcast Zone 7. Additionally, Mac is now the U.S. Ambassador for the Wild Life Forensic Academy in South Africa.

Sheryl has reviewed, consulted and worked on thousands of criminal cases across the USA and has appeared on Dateline, Nancy Grace, Dr. Oz, CSI Atlanta, Fox Nation, and Discovery ID. Some of her most famous cases include: The Boston Strangler, Natalie Wood, Kathleen Savio (Drew Peterson), Don Lewis (Tiger King), Natalee Holloway, the Missing and Murdered Children (Wayne Williams) and Tu Pac Shakur.