The First 48 : Season 13

The case of a missing New Orleans couple takes an ominous turn when one of them is found dead in a river.

In Birmingham, AL, a woman, her son and her young niece are stabbed more than 75 times then set on fire inside their apartment. Investigators zero in on the victims' relative. But at trial, the defense claims the suspect's IQ is too low to qualify for the death penalty. It would be up to the prosecution to paint a gruesome, vivid picture of this brutal crime to secure a capital murder conviction and the ultimate punishment.

In Cleveland, a 14-year-old girl was gunned down at her own birthday party when rival gangs opened fire. After interviewing eyewitnesses, detectives hunted down several suspects. But would the prosecutor be able to bring all of the defendants to justice? 1200 miles south, in Miami, a woman was shot over a dozen times during a drug deal gone wrong and lived to tell about it. When the woman identified the man who shot her and killed her boyfriend, Det. Manny Castillo hoped her story would be

In Dallas, a young father is shot dead outside a bar, and the killer is caught on video. But can detectives find someone to ID him? Then, in Cleveland, a mother of six is gunned down on her birthday, leaving her family devastated and the homicide team desperate to figure out who pulled the trigger.

A young father is ambushed and killed at a Dallas gas station; detectives suspect an inside job in the case of a Miami rapper who was gunned down at his car wash.

In Harris County, Texas, a 41-year-old woman is killed in her home by four masked men. Investigators have an idea of who did it, but need to get enough evidence to prove it. Then, when one of the defendants faces a jury, the defense turns the table and puts the Harris County Sheriff's department on trial.

A 19-year-old with a criminal past comes face-to-face with a good Samaritan trying to save his friends, and a single gunshot sounds. With the legal system put to the test, will a killer be let loose on the Dallas streets, or spend life behind bars?

Detectives in Tulsa, Okla., encounter a neighborhood under siege by young thugs after a man is killed in his home by a stray gunshot.

Tulsa, Okla., police Detective Justin Ritter's investigation into the stabbing of an innocent father leads him into the dangerous world of methamphetamine addiction.

A New Orleans detective searches for a witness in the case of a woman who was killed in broad daylight.

Detectives try to determine if the strangulation of a grandmother is possibly related to other killings in East Cleveland; a Dallas man is shot to death while in the back of his car with his girlfriend.

A young father killed at an abandoned Atlanta car wash may have been the victim of gang violence; a Gulf War veteran is shot dead in a park.

Detective Summer Benton uncovers the shocking reason why a young Atlanta father was ambushed and murdered by gunmen.

The killing of a foreign exchange student is captured on video; family members are involved in a shooting at a New Orleans carwash.

A late-night pizza delivery in New Orleans leads to a fatal outcome; a young Atlanta man is murdered during a cigarette run.

A young father is ambushed and killed at a Dallas gas station; detectives suspect an inside job in the case of a Miami rapper who was gunned down at his car wash.

The murder of a Cleveland store clerk is caught on tape; police detectives learn that the suspects in the crime have a violent history.

New Orleans police detectives piece together the last hours in the life of a mother of five, who was found bound and executed in an empty lot.

A Cleveland man is shot multiple times and left to die in an alley; police detectives risk their lives to untangle the web of lies surrounding the investigation.

A young Dallas father's secret may have led to his shooting death; Cleveland detectives have little to work with as they probe the case of a mother who was strangled in her kitchen.

In Harris County, Texas, a 41-year-old woman is killed in her home by four masked men. Investigators have an idea of who did it, but need to get enough evidence to prove it. Then, when one of the defendants faces a jury, the defense turns the table and puts the Harris County Sheriff's department on trial.

In the Dallas Neighborhood of Oak Cliff, two young men are shot in the head inside a drug house, their bodies found burned in the trunk of a car. Investigators scramble to find eyewitnesses to the crime and the three suspects, but at trial no one can say who pulled the trigger. It's up to the prosecution to paint a gruesome, vivid picture of this brutal crime in the hopes of securing a capital murder conviction.

A 19-year-old with a criminal past comes face-to-face with a good Samaritan trying to save his friends, and a single gunshot sounds. With the legal system put to the test, will a killer be let loose on the Dallas streets, or spend life behind bars?

Cleveland detectives track two suspects in a gang-related killing; a Florida man clings to life after he is shot in the head.

In Harris County Texas, a 38-year-old man is stabbed to death in his own home leaving behind two children and his wife. Investigators track down the suspect thanks to surveillance video and some good old fashion detective work. But when the defendant claims self defense, the state must put together a case that will convince the jury the dead man was in fact the victim and not a predator.