One fall afternoon a man decides to inflict as much damage as possible on his small town.

Police arrive on the scene of what they are told is a suicide. But as they begin their investigation a different story starts to emerge.

A young man’s trusting nature ends up having deadly consequences.

Dispatcher Dawn brings us 3 memorable stories that stand out for her as a 9-1-1 operator with 25 years of experience on the job at her small town police agency.

We sit down for a conversation with one of the suspects from a 2-part case we covered in Season 2 called “Presumed Guilty.”

We sit down with world-renowned forensic scientist and cold-case investigator, Paul Holes, to hear about one of his first cold cases, as well as the profiling techniques he developed over the years to catch the serial sexual predators he hunted.

Detectives George, Dan, and Dave are called to a deceased subject. There’s blood everywhere, but it’s not immediately apparent how the victim died. A mountain of lies from multiple suspects make solving this case especially challenging.

The fire department is called to a fire in a small community where an elderly widow is found murdered in her own home. Which also happens to be the scene of the fire.

A concerned mother calls police to report that her 14-year old daughter is receiving sexually explicit messages on Facebook from an adult male. So Detective Dave sets an irresistible trap to catch the cyber predator.

Carlos arrives to work and finds his manager-boss dead in the walk-in freezer. He calls 911. Investigator Tracey arrives and begins to peel back the onion revealing a robbery and a vendetta.

Detective Rich takes us into the world of online gaming where a shadowy, vindictive prank known as “swatting” leads to ruined lives and even murder.

A drug deal gone wrong leads to dire consequences for an innocent victim.