The public expresses outrage after a married couple are gunned down at their Louisville, Ky., home in front of their two young children.
Dismembered body parts are found floating in Miami's Biscayne Bay, prompting detectives to work around the clock to solve the murder.
Sgt. Roger Wedgeworth investigates the murder of a homeless man; Detective Scott Russ investigates the murder of a young man who was the prime suspect in a current double-homicide case.
Detective Chris Anderson returns to his childhood neighborhood to investigate a drug-related murder.
A detective is assigned to the homicide case of a good friend's brother; a popular teenager is gunned down on a residential street.
A young man is shot to death in the middle of the street in broad daylight; a teenager's body is found in the passenger seat of his car.
A barrage of bullets from a machine gun leaves two young boys injured and a teenager dead; detectives resort to old-fashioned detective work to solve the case.
Detectives in Cincinnati investigate the double homicide of a hairdresser and his elderly neighbor; a late-night visitor slashes the throat of a 30-year-old mother of three.
Two out-of-town brothers get involved in a drug deal gone wrong; forensic evidence must be used to piece together a deadly shooting when people refuse to talk.
A 24-year-old father of two is shot in the street; a 27-year-old man is found dead in a field; police are stunned to learn the two cases are connected.
A fight between two teenagers leads to the murder of a 29-year-old man and his paralyzed mother.
A homeless man known for looking after fellow transients is shot to death; while on the phone with 911 over an injury, a woman's boyfriend is shot dead.
A mother is shot in her car while her three young children sit in the back seat; four cousins are gunned down while relaxing on their grandmother's porch.
The murder of Darrell Harrell; the murder of Virgil Fuselier.
A 30-year-old employee left in critical condition; 39-year-old man gunned down.
In Miami, Detective Anthony Reyes and the homicide team are investigating the murder of a middle-aged mother of four, shot to death in a random robbery outside a public storage facility.
A teenager is murdered at his family's taco stand; a mechanic is killed late at night.
Investigation on Easter Sunday; a young father is killed.