The First 48 Presents: Critical Minutes

In New Orleans, a young mother is found shot and burned in the trunk of her car when a night out on the town becomes her last.

In Tulsa, a young woman is killed in a drive by shooting, while her boyfriend - the apparent target - walks away unscathed. Leatherman talks to a group of teenagers and delves into a long simmering feud to find her killer.

When a former marine is gunned down trying to recover his stolen bicycle, Tulsa detective Matt Frazier goes on the hunt for an elusive criminal family.

In Minneapolis, when a young Somali girl is executed in bed, Sergeants Charlie Adams and Chris Thomsen uncover a secret relationship that may have turned deadly.

In New Orleans, a double-shooting on Bourbon Street has the city on edge. In Tulsa, a man killed by a shotgun blast may have been lured into a trap.

When a suburban teenager is found dead in a robbery gone bad, Minneapolis detective Emily Dunphy must find out which of the victim's friends may have double-crossed him.

When a young mother is found naked and strangled in her car, Tulsa detective John Brown uncovers a dark obsession that may have turned deadly.

In Tulsa, a young mother of four is found shot on the side of the road. Detectives' only clue is a photograph she took just moments before her murder.

House Of Cards: Firearms and meth use result in a young man's death in Tulsa and authorities try to piece together eyewitness accounts to find his killer. (S19, ep 10)

In Tulsa, an innocent mother is viciously murdered with a butcher knife. In Atlanta, a beloved patriarch is gunned down when a game of dominoes turns deadly.

When a young man is shot to death at a motel party, Tulsa Detective Justin Ritter discovers a photo posted on Facebook may have triggered a dangerous chain of events.

In New Orleans, a man is executed in broad daylight, and Detective Ryan Vaught must battle fear and distrust on the street to identify the killer.

In Atlanta, a caretaker is gunned down over a grudge. And in Tulsa, a young man loses his life when a bully goes too far.

Detective Rob Barrere investigates when three men meet in a motel room in New Orleans east, and one of them ends up dead. In Tulsa, Detective Ronnie Leatherman catches the case of a man stabbed 21 times.

When a young man is found shot dead in his van, Tulsa Homicide retraces his final hours and gets caught up in a web of lies.

When an Atlanta father of two is gunned down with an AK-47, rookie detective Scott Berhalter must sift through lies and alibis to get his killers off the street.

New Orleans Homicide works the stabbing death of an infamous local criminal. In Minneapolis, a squabble amongst friends leaves a woman brutally murdered in a bus station.

In Atlanta, a brash murder in front of an elementary school turns up a familiar name.