The First 48: Extreme Kills

A 58-year-old woman is found naked and dead under a highway overpass; a teenager is shot in an apartment complex.

A barrage of bullets from a machine gun leaves two young boys injured and a teenager dead; investigators resort to old-fashioned detective work to solve the case.

A 20-year-old single mother mysteriously disappears, and a bloody, abandoned car is the only evidence available for the police.

Detective David Quinn tracks a killer with a powerful weapon who is keeping the city of Atlanta gripped with fear.

A Dallas police detective must unravel a robbery plot when the body of an expectant father is found bound and burned in a creek bed.

A cat-and-mouse game ensues as Phoenix detectives track the cunning killer of a young worker at an all-night ice rink.

A man is found dead in his apartment on a bed of broken glass; homicide detectives focus on a suspect.

Homicide detectives navigate through false leads and dead ends in the case of a man found beaten to death underneath an interstate; an alleged eyewitness to the crime neglects to mention one major detail.

A young Dallas father's secret may have led to his shooting death; Cleveland detectives have little to work with as they probe the case of a mother who was strangled in her kitchen.

A young New Orleans mother is found shot and burned in the trunk of her car following a night out on the town.