Odell Hallmon, the state's key witness in the Curtis Flowers case, is serving three consecutive life sentences. We wondered what he might say now that there are no deals to cut, and he will spend the rest of his days in prison. Would he stick to his story that Flowers had confessed to the Tardy Furniture murders? We wrote him letters and sent him a friend request on Facebook. Weeks went by and we heard nothing. And then, one day, he wrote back. 

No witness has been more important to the prosecution's case against Curtis Flowers than Odell Hallmon. He testified in four trials that Flowers had confessed to him while the two men were in prison together. Hallmon has an astonishingly long criminal history that includes repeated charges for drug dealing, assault, and robbery. So how reliable is his testimony and did he receive anything in exchange for it? In this episode, we investigate the veracity of the prosecution's star witness. 

Over the years, three inmates have claimed that Curtis Flowers confessed to them that he killed four people at the Tardy Furniture store. But they've all changed their stories at one time or another. In this episode, we investigate who's really telling the truth. 

Investigators never found the gun used to kill four people at Tardy Furniture. Yet the gun, and the bullets matched to it, became a key piece of evidence against Curtis Flowers. In this episode, we examine the strange histories of the gun and the man who owned it. 

The case against Curtis Flowers relies heavily on three threads of evidence: the route he allegedly walked the morning of the murders, the gun that investigators believe he used, and the people he supposedly confessed to in jail. In this episode, we meet the witnesses who said they saw Flowers walking through downtown Winona, Mississippi, the morning of the murders. Some of their stories now waver on key details. 

On the morning of July 16, 1996, someone walked into a furniture store in downtown Winona, Mississippi, and murdered four employees. Each was shot in the head. It was perhaps the most shocking crime the small town had ever seen. Investigators charged a man named Curtis Flowers with the murders. What followed was a two-decade legal odyssey in which Flowers was tried six times for the same crime. He remains on death row, though some people believe he's innocent. For the second season of In the Dark, we spent a year digging into the Flowers case. We found a town divided by race and a murder conviction supported by questionable evidence. And it all began that summer morning in 1996 with a horrifying crime scene that left investigators puzzled.

Curtis Flowers has been tried six times for the same crime. For 21 years, Flowers has maintained his innocence. He's won appeal after appeal, but every time, the prosecutor just tries the case again. What does the evidence reveal? And how can the justice system ignore the prosecutor's record and keep Flowers on death row? 

The sentencing of Danny Heinrich on Nov. 21, 2016, brought to a close the 27-year investigation into the abduction and murder of Jacob Wetterling. But it didn't end the story.