Six people were convicted of the brutal 1985 murder of Helen Wilson in Beatrice, Nebraska. Three even confessed. But Joseph White's two-decade fight to prove his innocence would turn the case and the town upside down.

When a young Michigan mother vanishes without a trace, her family, friends and detectives begin a desperate search, but she's never found. Twenty-five years later, a murder leads a reporter to investigate the old case, revealing secrets, old and new

In 1993, when he was 16 years old, Daniel Villegas confessed to the deaths of Armando "Mando" Lazo and Bobby England. Hours later, Villegas claimed the confession was coerced by an El Paso Police Department detective. Keith Morrison discusses the facts and circumstances of this capital murder case.

Who is Donnie Rudd? It depends on who you ask. To some, he's a war hero, lawyer and brilliant scientist, but to others, he's a conman, womanizer and possibly a murderer. Follow NBC's Keith Morrison as he takes us from the small towns of Texas to the elite suburbs of Chicago to learn more about Donnie through the accounts of family members and business associates. Four decades after what some authorities believe may have been Donnie's first murder, he's still a free man, but Morrison rushes to get the facts just before Donnie's June 25, 2018 Chicago area-based murder trial begins

In 2012, Dateline NBC correspondent Keith Morrison nationalized the heartbreaking case of Angie Dodge, an 18-year-old woman murdered in her home in Idaho Falls, Ind. Two decades ago, police arrested an acquaintance of Dodge, 20-year-old Chris Tapp, after he confessed to participating in her murder. In the years since Tapp's conviction, hours of video documenting his interrogations with police were made public and ignited a firestorm of controversy over whether the confession that led to his life sentence for murder was false and coerced. The Idaho Falls Police Department denies the allegations and stands by Tapp's conviction. But in a surprising twist, Angie's own mother, Carol Dodge, became one of Tapp's greatest advocates and was at the helm of the fight for his exoneration as part of her ongoing mission to find the man who killed her daughter.

Morrison's original reporting sparked nationwide interest in Tapp's case and inspired an outcry from advocates calling for Tapp to be freed. In March 2017, Tapp struck a deal with the state: he was released from prison immediately, but his murder conviction was upheld. Tapp remains a felon in the eyes of the law. Investigation Discovery's (ID) cameras were in the courtroom for Tapp's emotional release and now the leading true-crime network has teamed up with Morrison to share the latest installment in the Angie Dodge murder investigation, as well as Tapp's story, through an interview conducted with him three weeks after he became a free man. Produced by NBC News' Emmy Award-winning production arm Peacock Productions, the two-hour special WHO KILLED ANGIE DODGE? KEITH MORRISON INVESTIGATES premieres Memorial Day: Monday, May 29 at 8/7c on ID.

Keith Morrison investigates the horrific 1994 murders of Joann Katrinak and her infant son Alex, the tangled relationships surrounding the crime, and the ongoing claims that Patricia Rorrer was wrongfully convicted.