The First 48

A young mother and her best friend gunned down in broad daylight sets off a chain of events that Tulsa Homicide never could have imagined.

When a young man and his pregnant fiance are executed after a failed ransom attempt, Atlanta Homicide will stop at nothing to identify the elusive suspect.

Tulsa detectives battle to solve beloved grandfather's home murder.

21-year-old woman shot dead in Mobile hotel; 42-year-old music producer killed in Gwinnett County. Clues suggest a shooting spree.

In Atlanta, when a young father is found dead in his home by his girlfriend, detectives track down the killer and find things are not as they appear.

In Tulsa, a father of three is gunned down in front of his family during a deadly crime spree. Detectives race to track down his killer before anyone else gets hurt.

In Tulsa, a homeless man is beaten and stabbed to death, leading detectives to witnesses that live under the bridge where he was discovered.

In Tulsa, detectives have little to go on when they find the naked body of an unknown homeless woman who was raped, strangled to death, and thrown into a dumpster.

A young woman in Mobile is found dead behind an abandoned building. A young father's murder case sends Atlanta detectives to the Poconos Mountains in search of his killers.

In Tulsa, two brothers are shot down after checking on their night cleaning crew. Detectives struggle to find a motive before the killer strikes again.

In Tulsa, a father is gunned down in a parking lot by a killer lying in wait. In Mobile, an elderly man dies from a suspicious fire in his apartment.

In Atlanta, a young man comes home for lunch and winds up murdered when he catches a brazen thief in the act.

When a man is found shot dead in his driveway, an abandoned truck leads Tulsa Homicide to several potential suspects, but not everything is as it seems.

Detectives probe young mom's murder, uncover lethal plot.

Man shot at complex under scrutiny after viral rap video.

Tulsa Homicide responds when a father of three is gunned down at his job by suspects who end up in a standoff with police.

In Tulsa, when a homeless man is killed after getting run over in a parking lot, detectives work to track down the elusive driver.

Teen in Tulsa shot dead; detectives sift through roommates' tales.

In Tulsa, detectives question whether a young woman's death was a tragic mistake or murder. In Mobile, the murder of a young father tests a bond between brothers.

In Mobile, when two friends are found executed in a car on a dark dead-end street, the investigation leads detectives to an unlikely suspect.