The First 48 Presents: Critical Minutes

In Tulsa, a young woman is brutally gunned down in broad daylight. Detective Justin Ritter suspects the witnesses know more than they are saying.

In Atlanta, a young father is gunned down in cold blood at an abandoned car wash. As Detective Dwayne Sutton starts to learn that the trail may lead to the 'Bloods' gang.

Night Run: When a young father is ambushed by a

In Atlanta, the brutal murder of a foreign exchange student is caught on video. In New Orleans, a shooting at a car wash becomes a family affair.

When a young woman is executed on a street corner, Tulsa investigator Nathan Schilling discovers her circle of friends may all be connected to the murder. He must uncover their secret, before a killer goes free.

In Atlanta, a young father is gunned down by a brutal robbing crew and Detective Tracy Lewis discovers on her first case that she may be chasing the wrong suspect.

The city of Atlanta is gripped with fear as a deadly killer prowls the streets for unsuspecting victims - with a powerful gun. Detective David Quinn must track him down before he strikes again.

In Atlanta, a young woman is found on the floor of an abandoned house, naked and strangled to death. As the investigation unfolds, further horrors are revealed and Detective Scott DeMeester must act fast before his suspect kills again.

In Tulsa, a vicious assault on a crowded barbershop leaves multiple people wounded and an innocent barber dead. Detective John Brown delves deep into a dangerous world of gang violence to catch a killer on the loose with an AK47 assault rifle.

A welder has vanished under very suspicious circumstances and Tulsa homicide gets the case. Detective Matt Frazier and the rest of the team suspect foul play as they dive deep into the mystery surrounding the man's life.

In New Orleans, a mass shooting on innocent bystanders and tourists leaves the city demanding answers.The homicide team use shocking surveillance footage of the crime to piece together what happened.

Knock Knock: In Tulsa, a man from out of town

When a hip-hop promoter is gunned down, Detective Clinton Givens' search for the killer gets him more than he bargained for. In Tulsa, a friendly night of drinking leaves one man dead and another wounded. Detective Mark Kennedy must find a third man.

Moonie/Dark Impulse: A woman is found stabbed

In Tulsa, a father is shot dead while visiting his son, and Detective Justin Ritter discovers the child's mother holds the key to the case. In Atlanta a teenager is killed and two are wounded in a home invasion.

Broken Home: New Orleans detectives race

In New Orleans, a young father is cut down by a hail of bullets when he and his friends are ambushed. And in Atlanta, feuding households within the same apartment complex collide, leaving a boxer dead and his brother bent on revenge.

When a man is gunned down with an AK-47 in his home, Atlanta Detective Kevin Leonpacher discovers the victim's wife holds a dark secret that could tear their family apart.