The First 48 Presents: Critical Minutes

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When two young men are shot and killed in a car, Gwinnett County Homicide must turn to the survivors to learn the truth about what led to the shooting.

In Tulsa, a woman is found dumped in a hospital parking lot after someone she trusts crosses the line. Then, in Mobile, a jealous rage leaves a father of nine dead and threatens to tear his family apart.

In East Tulsa, a young man stands up for his girlfriend and pays the ultimate price. Then, a West Tulsa man is gunned down in front of his girlfriend when someone from her past goes over the edge.

In Tulsa, a quadruple shooting leaves two people dead as a vigilante seeks payback for his house being targeted in a drive-by shooting. In Mobile, a man is shot in front of his fiancée as a dispute over money takes a deadly turn.

Mobile Homicide track a killer who shot a man in his home, but they learn not everything is what it seems.

In Mobile, Detective Jermaine Rogers hunts for multiple perpetrators of a home invasion that left two dead.

In Mobile, Detective Jermaine Rogers hunts for multiple perpetrators of a home invasion that left two dead.

A father of four is gunned down while defending his girlfriend during a brutal home invasion.

The Abnormals: A missing persons case takes a turn when new evidence emerges that indicates foul play.

When a young man is gunned down while walking home, rumours swirl about who could have wanted him dead.

A man pays with his life when he confronts a hit-and-run driver and Mobile police embark on a hunt for a killer.

A deadly situation unfolds when a homeless woman and her boyfriend are taken in by a friend who winds up dead.

Unforgotten: Crystal: Tulsa Homicide navigate their way through their most difficult unsolved case yet, spanning several years and multiple suspects.

Out of the Darkness: In Tulsa, two families devastated by domestic violence look to detectives to find justice for their loved ones.

Unforgotten: Darrin: The leads run dry when a teenager is found dumped in a field in Tulsa, but detectives are determined to get justice for the victim's family.

When three people are gunned down in a quiet neighbourhood, Gwinnette County police struggle to find a connection between the victims.

The cold-blooded shooting of a man outside his apartment is caught on video, but detectives must work through the night to identify his masked attacker.

Old habits die hard when a young father gets out of prison and is drawn back into his old life. After he's shot dead, Tulsa homicide must sort through a web of lies to find out who killed him.

In Tulsa, three people are executed in their ransacked home, and the woman who found them may hold the key to finding the killer.

In Mobile, a father of four is gunned down in a strip club when a chance encounter turns deadly.

When a hard-working construction worker is brutally murdered on payday, Tulsa detectives discover he's fallen prey to a seemingly unlikely attacker.

When a love triangle turns deadly, a killer enlists an unusual murder weapon.

Friends with Guns/All in the Family: In Tulsa, Oklahoma, a friendly gathering takes a fatal turn. In Mobile, Alabama, a plan to settle a dispute backfires.