After ranchers spot the body of a teen girl brutally beaten on a riverbank, deputies conduct countless interviews to no avail. Years pass until cutting-edge technology helps police lift DNA from the murder weapon and zero in on an enraged killer.

After motorists spot a man's body burning on the side of the highway, investigators find evidence of a brutal assassination and fiery cover-up. Detectives decode construction debris with curious details to reveal a scheme that ended in murder.

When a beloved single dad is found dead in his burning home, an autopsy reveals the fire didn't kill the man he was murdered. Investigators must decode ballistic, chemical, and digital clues to reveal a complex plan by a twisted killer.

After a young woman goes missing, children find her body disposed of in a rural community miles away. Forensic experts decipher surprising animal hair fibers and DNA evidence, which puts detectives on the trail of an enraged predator.