A Texas mother is sentenced to death after being convicted of murdering her two young sons in their Dallas-area home.

In 1986, a fire engulfed the home of newlyweds in Paris, IL, with them inside, but the fire was intended as a cover-up: The couple had been stabbed to death before the arson. Flawed evidence. Conflicting accounts. Leads that were never followed. Recantations. How does a double homicide case become too politically sensitive? And how did an innocent man end up on death row for almost 20 years?

An investigation into the brutal murders of a California family in their home in Chino Hills, CA. A getaway car. A hatchet. A bloodstained shirt. Did Kevin Cooper kill the Ryen family -- or was he framed?

The execution-style killings of a Florida nightclub owner and two aspiring models are caught on camera. All three found dead, side by side, killed execution style. The crime was caught on videotape, but was the wrong man sent to death row?

Two construction workers are brutally attacked in San Antonio. One survives and is able to identify his assailant. Ruben Cantu was a 17 year old from Texas who was executed after being convicted of the brutal murder - a conviction based on a questionable evidence. Did they execute the right man?

Throughout the history of capital punishment in America, states have reviewed and revised execution methods in the interest of finding a more "humane" option. Ohio, Arizona and Oklahoma are among the states where lethal injection executions have gone horribly wrong. What's life like for those executioners who are paid to end the lives of others...especially when it doesn't go according to plan?

A money order salesman is brutally murdered and two teenage brothers and their best friend are arrested; they spend almost four decades behind bars, until a journalist takes notice of the case and uncovers evidence of the men's innocence.

The shooting of a newspaper carrier in rural Mississippi lands Marlon Howell on death row. Convicted on the word of two co-defendants and the identification of an eyewitness with a checkered past, Marlon maintains his innocence.

Nick Yarris's uncanny knowledge of a gruesome kidnapping and murder makes him a prime suspect and eventually lands him on death row. Twenty years and one escape attempt later, new evidence emerges that offers Nick one last hope for freedom.

A man is found dead in his rural Mississippi home, shot four times with his own 9mm pistol. His 19-year-old son names his hospitalized mother, Michelle Byrom, as the mastermind of the murder, claiming she hired the boy's friend to shoot her husband, and promising to pay him from the life insurance payout. Sentenced to death, Michelle spends 14 years awaiting execution - until a determined team of lawyers unearths a dark history of domestic and sexual violence, and a confession that points to an alternate suspect.

After a month-long search, the body of missing nineteen-year-old Melissa Trotter is recovered in a Texas forest. Local police quickly zero in on Larry Swearingen, who was last seen with Melissa just before she disappeared. After physical evidence and the murder weapon tie Larry to the murder, he is convicted and sentenced to death. Twenty years later, Larry maintains his innocence, pointing out flaws in the State's case - including incomplete DNA tests, an alternate suspect, and forensic evidence that suggests Melissa may have been killed after Larry was arrested.

A case that has sentenced a reformed gang member to death unveils the corruption in the criminal justice system.

A Spaniard is sentenced to death for the murder of a young Florida couple. His family appeals to the international media to fight his conviction.

A masked attacker shoots up an apartment in Bucyrus, Ohio, leaving three dead and two young children clinging to life. After witnesses report seeing a "large black man" near the scene, police close in on Kevin Keith, a local drug dealer who was recently busted based on information offered by a snitch. It was the snitch's family that was murdered, leading prosecutors to argue Kevin's motive was revenge. Despite the lack of physical evidence, Kevin has spent 25 years locked up - but a young public defender believes long-hidden case records will shed new light on the Bucyrus murders and clear Kevin's name.

There's no doubt Terry Williams committed murder - but what drove him to kill?

In August 1985, a quiet Philadelphia neighborhood is shattered by tragedy. A house goes up in flames, with two young boys trapped inside. Police and fire investigators suspect their father, Daniel Dougherty, intentionally set the fire, but they don’t have the evidence to arrest him — until fourteen years later, when Daniel’s ex-wife comes forward to say he confessed to her. In the years since he ended up on death row, Daniel’s case has gone to trial an astonishing three times. Daniel claims the fire science that put him away is deeply flawed — but his own dark past, and lingering mysteries about the fire itself, make this anything but an open and shut case.

In May 1992, four young men enter a park in Houston, Texas. Minutes later, one of them is dead from a bullet and a shotgun blast to the head. When police track down one of the surviving drug dealers, he names 17-year-old Nanon Williams as the shooter, and other witnesses back up the story. Nanon becomes one of just over thirty juveniles on death row in America, but he pleads his innocence. As his appeals attorneys reexamine the evidence, they learn that the state made a grave error: the bullet in the victim’s brain didn’t come from Nanon’s gun, but his co-defendant’s — a man who only served four years in prison. Prosecutors stand by the conviction, even as Nanon tries to prove he’s redeemed himself behind bars.

When Tyreese Gamon is shot dead in broad daylight on a street corner, he becomes one of hundreds of murder victims in Philadelphia that year. Tyreese had a target on his back: he was slated to testify in a murder trial. Police follow the evidence to a suspected hitman named Donte Thomas. Despite his checkered past, Donte insists he’s no murderer — yet prosecutors sway a jury to sentence him to death. Years later, Donte’s appeals defender pokes holes in his original trial, including the phone allegedly used to orchestrate the hit and the failure of Donte’s original attorney to present crucial evidence.

When single mother and Phoenix bartender Kim Ancona is found brutally stabbed to death, her passing tears her family apart. Combing the crime scene, police find an intriguing clue: bite marks on Kim’s body that suggest her attacker has crooked teeth. Detectives turn to Ray Krone, a local mailman with a damaged jaw. A renowned prosecutor pushes for a death sentence, but Ray’s family and appeals attorney refuse to give up hope. They win Ray another trial, forcing him to go up against the same bite mark science that put him away the first time. Ultimately, Ray’s freedom depends on the emerging science of DNA — and finding Kim’s true killer.

Sabrina Butler, a 17-year old African-American woman, arrives at a Mississippi hospital with her baby dead on arrival; nurses and doctors suspect foul play, and Sabrina cannot give straight answers about what happened to her baby.

In 1987, Kris Maharaj receives the death sentence for a double homicide, but attorney Clive Stafford Smith uncovers powerful evidence that supports an alternative, opening a virtual Pandora's box of the city's lucrative illegal operations.

After a Delaware store clerk is murdered, a local drug dealer confesses to the crime..but can what he says on tape be believed?

Detective Marshall Frank attempts to exonerate his fellow cop James Duckett, who is sentenced to death for the rape and murder of an eleven year-old girl.

Clarence "Smitty" Smith, the leader of the notorious biker club the Outlaws, is accused of a quadruple homicide in Fort Lauderdale, Fla.; after beating the rap for the homicides, he is sentenced to death for the car bombing of a federal witness.

The case of Nathan Dunlop, who was sentenced to death for the 1993 murders of four people at a Chuck E. Cheese restaurant in Aurora, Colo.