Summary: A 14-year-old Cleveland girl dies at her own birthday party when gunmen fire on a crowd; homicide detectives race to track down multiple shooters in the crime.

Summary: Police detectives conduct a three-state manhunt as they investigate the slaying of a young Dallas couple; a Cleveland man is found shot to death in his own backyard.

Summary: A violent carjacking leads to the murder of a young father; a Miami musician is shot down in the street.

Summary: Dallas detectives launch a manhunt for the person who gunned down an innocent man in his car.

Summary: Cleveland homicide detectives follow a bizarre trail of evidence in the case of a father of five who was stabbed over 50 times.

Summary: In Dallas a young father is shot in the back, but no one wants to talk.

Summary: In Dallas, when a good Samaritan is gunned down trying to protect his friends, detectives must unravel a tangled web of bad tips and lies in their hunt for the killer.

Summary: In Miami, a family is shattered when two teenage brothers are gunned down in their own backyard. Two surviving friends point Detective TC Cepero and his team in the direction of two desperate and dangerous gunmen on the run. But Cepero will need the community's help to get the brazen killers off the street.

Summary: In Dallas, an unidentified girl is found brutally shot in a field. Detectives Scott Sayers and Esteban Montenegro discover that she may have been killed for her silence. Then in Cleveland, a young father is shot in the head trying to break up a fight. Without any leads, Detectives Ignatius Sowa and Raymond Diaz must rely on an outraged community to help track down his killers.

Summary: Police detectives search for an elusive killer who shot a man in a Cleveland courtyard; a 72-year-old grandmother is beaten to death in her Dallas home.

Summary: In Cleveland, when a teenager is shot down in the street, detectives discover his best friends may have something to do with the murder. In Harris County, a young woman set on fire clings to life as deputies race to find who left her for dead.

Summary: In Cleveland a man is gunned down defending his home on New Year's Eve. With no eyewitnesses, Det. Melvin Smith must rely on DNA evidence to track down the killers. And in Broward County, Florida, when an elderly man is found dead in his apartment, Det. John Curcio's hunt for the suspects leads to a surprising discovery.

Summary: A police detective hopes to locate the killers of two Miami men before the bloody turf war claims another victim.

Summary: A young mother of three is gunned down in front of her Cleveland home; a birthday party celebration in Florida turns deadly.

Summary: In Broward County, when a migrant worker is robbed and beaten to death, Dets. Valerian Perez and Kevin Forsberg must track down a vicious predator before he strikes again. Then, in Cleveland, a man is shot dead in broad daylight at a carwash, and Dets. Lem Griffin and Art Echols fear their case will go cold when none of the witnesses will talk.

Summary: The use of a stolen bank card leads Dallas detectives toward the killer of an elderly woman; a teenage honors student is found shot in her own backyard.

Summary: A young mother is viscously murdered and dumped in an abandoned house. Detectives Nate Sowa and Ray Diaz make a surprising discovery about the killer.

Summary: An innocent man is gunned down in a gang war. Detectives race to find his killers before any more blood is shed. In Dallas, a father is murdered close to home and detectives need his neighbors to give them a lead.

Summary: In Cleveland, for Detectives Kathleen Carlin and Tim Entenok, friends are the key to solving the murder of a father shot in the back. And in Dallas, can a surprising lead help Detective Brian Tabor catch up to the killer of an elderly man stabbed to death in his home?

Summary: A man is shot to death in a nearby suburb, and police learn that his wife may hold the key to solving the crime.

Summary: A group of carjacking killers terrorizes a Dallas neighborhood; tragedy results when an argument between friends gets out of control.

Summary: A Dallas police detective must unravel a robbery plot when the body of an expectant father is found bound and burned in a creek bed.

Summary: New Orleans detectives have little to go on in the hunt for a killer; a young woman is gunned down in the street while walking home from work.

Summary: Masked gunmen terrorize a Cleveland family and execute the young patriarch; Dallas detectives hunt for a killer who gunned down an innocent teen with an assault rifle.

Summary: Dallas detectives hunt a car thief who fatally shot a man and stole his vehicle; detectives search for a witness for can identify the killer of a Cleveland man.

Summary: 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.

Summary: Detectives in Florida's Broward County investigate a fatal highway shooting; the execution of three friends outside a Dallas nightclub is caught on video.

Summary: Cleveland detectives uncover a shocking motive in the case of a bullied teen who was shot and killed outside a public library.

Summary: The brutal slayings of a mother and her two children send a New Orleans detective on the hunt for a suspect who may have been acquainted with the victims.

Summary: A New Orleans police detective hunts for the killers of a recent high-school graduate; an unidentified woman is found shot and dumped on the side of a Dallas highway.

Summary: A police detective's first case as a lead involves hunting one of Ohio's most dangerous criminals; a New Orleans neighborhood remains silent following the daytime shooting of an innocent man.

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

Summary: 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.

Summary: Dallas detectives hope that video footage can identify the person who murdered a young father; a Cleveland mother of six is shot and killed on her birthday.

Summary: When a bullied teen is gunned down, Cleveland Detectives are shocked to discover the motive behind this senseless attack.

Summary: In Dallas, a young father is ambushed at a gas station. In Miami, a beloved local rapper is gunned down at his car wash.

Summary: Dallas homicide detectives discover nearly $1 million in the home of a man who was shot on his front porch; two violent suspects are tracked.

Summary: 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.

Summary: 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.

Summary: 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.

Summary: 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?

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

Summary: A New Orleans woman and her 4-year-old grandson are shot in her bedroom; the crime is investigated as the child struggles to survive.

Summary: 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.

Summary: A woman is badly beaten, set on fire, and left to die in a trailer on the outskirts of Houston. Investigators discover that the assault was likely a revenge attack--by someone in the victim's inner circle. At trial, the prosecution has the ultimate witness, but the courtroom is stunned when the defendant takes the stand and tells his side of the story.

Summary: An attempted mugging turned to murder when a man stopping at a gas station for a lottery ticket and beer was shot and killed. With few leads to go on, detectives spent months hunting down the killers, finally arresting two young men from the neighborhood. At trial, reluctant witnesses and grainy security video bring the case down to one man, whose testimony about the night of the murder was a deciding factor in the case.

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

Summary: A Dallas detective believes the wife of a shooting victim may be hiding a sinister secret; a popular New Orleans DJ is found bound and executed.

Summary: Detectives discover a house of horrors during their investigation into the fatal slashing of a New Orleans woman.

Summary: 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.

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

Summary: 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.

Summary: 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 enough to convict a killer.

Summary: 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.

Summary: 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.

Summary: 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.

Summary: 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?

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

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

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

Summary: 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.

Summary: 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.

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

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

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

Summary: 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.

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

Summary: 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.

Summary: 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.

Summary: 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.

Summary: 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.

Summary: 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.

Summary: 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?

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

Summary: 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.

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