Sheryl “Mac” McCollum is an three time nominated Emmy Award winning CSI from CSI Atlanta, National Law Enforcement Officer Hall of Fame Inductee, Director of the Cold Case Investigative Research Institute, a writer for CrimeOnLine, Forensic and Crime Scene Expert for Crime Stories with Nancy Grace, host of award winning podcast Zone 7 and a working CSI for a metro Atlanta Police Department. Sheryl is the Director of the Wildlife CSI Academy and the US Ambassador for the Wildlife Forensic Academy in South Africa.

Sheryl “Mac” McCollum has worked with criminals like famed Mafia hit man Frank Cullotta, Johnny Lee Cleary the ex Imperial Wizard of the KKK, the Flint River Killer, Alcatraz Inmate #1355 Robert Schibline and Jimmy Hoffa’s driver, The Weasel, to gain intel on how to solve certain cold cases. She has also worked side by side with notable family members such as Lana Wood, Beth Holloway, Sue Savio, Lois Duncan, Donna Pettis and Susan Levy. She not only admires them but considers them friends. She has genuinely befriended them all. For almost forty years, Sheryl has used her training and experience in criminal justice to solve some of the country’s most difficult cases.

Sheryl has reviewed, consulted and worked on thousands of criminal cases across the USA and has appears on Dateline, Nancy Grace, Dr. Oz, CSI Atlanta, Dr. Phil, 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.