
The First 48
A caretaker gets gunned down over a grudge; a bully kills a young man in Tulsa, Okla.

A caretaker gets gunned down over a grudge; a bully kills a young man in Tulsa, Okla.

A woman, 33, is stabbed to death in Louisville, Ky.; college student slaying in Minneapolis.

Detectives suspect foul play in the case of a welder who disappeared under mysterious circumstances.

A college student is stabbed after a night out with friends; a boy is shot.

Two murder victims have matching tattoos; a man is gunned down in an apartment doorway.

A vigilante may be the culprit in a stabbing case; a mother may have accompanied a shooter.

Gunfire interrupts a children's football tournament; a Louisville, Ky., celebrity is gunned down.

A caretaker gets gunned down over a grudge; a bully kills a young man in Tulsa, Okla.

A woman, 33, is stabbed to death in Louisville, Ky.; college student slaying in Minneapolis.

Detectives suspect foul play in the case of a welder who disappeared under mysterious circumstances.

A college student is stabbed after a night out with friends; a boy is shot.

Two murder victims have matching tattoos; a man is gunned down in an apartment doorway.

A vigilante may be the culprit in a stabbing case; a mother may have accompanied a shooter.

Gunfire interrupts a children's football tournament; a Louisville, Ky., celebrity is gunned down.

Investigating a Somali girl executed in Minneapolis; a beloved son shot dead at a house party.

A New Orleans detective probing a murder case searches for a witness with the courage to speak up.

An unidentified man is found dead in a field; a shooting victim is found in an abandoned apartment.

Rookie detective Scott Berhalter investigates the shooting death of an Atlanta father.

A New Orleans detective hunts for the killer of a mother and her two children.

Miami detectives search for a killer of two; a Cleveland man is found strangled in his apartment.