For the last 15 years, “The First 48” has followed thousands of homicide investigations in 27 cities across the country as detectives work relentlessly to solve murders in the critical first 48 hours of a crime. Over the course of the series’ run, viewers have been given unprecedented access to crime scenes, forensic processing, and investigations as detectives follow leads and uncover evidence and witnesses in order to identify the killers.
https://www.aetv.com/shows/the-first-48
