When did The First 48 Season 21 Episode 18 air?
The First 48 Season 21 Episode 18 aired on September 6, 2023.


The First 48 follows detectives from around the country during these first critical hours as they race against time to find the suspect. Gritty and fast-paced, it takes viewers behind the scenes of real-life investigations with unprecedented access to crime scenes, autopsies, forensic processing, and interrogations.

When a homeless man is found dead and an accidental death seems most likely, Detective Ryan Vaught must convince the squad it’s cold blooded murder. In New Orleans, when a new father is brutally gunned down, Detective Drew Deacon’s only lead is pinned on something the killer left behind. Detectives investigate on the highway when a driver is hit by AK-47 gunfire from another vehicle. After two young men are killed, Detective Nick Williams tries to get their friend to change his ways before he becomes another victim.
Direct answers for episode-level questions and details.
The First 48 Season 21 Episode 18 aired on September 6, 2023.
Runtime information for this episode is not available yet.
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