Investigation Discovery airing 2-hour Angie Dodge special tonight

The following is a news release from Investigation Discovery.

IDAHO FALLS — 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.

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.

WATCH | NBC NEWS CORRESPONDENT KEITH MORRISON DISCUSSES TAPP CASE

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 tonight at 6 p.m. on ID. The report will be shown in the Idaho Falls area on Cable One Channel 112, DISH TV Channel 192 and DirecTV Channel 285.

“Keith’s personal passion for the case to free Chris Tapp – most remarkably led by the mother of his alleged victim – was what persuaded Investigation Discovery to follow his fight and ultimately be there to witness the end of this chapter in seeking justice for Angie Dodge,” said Henry Schleiff, Group President of Investigation Discovery. “Keith’s ability to mine for facts without neglecting the emotional impact makes his coverage of WHO KILLED ANGIE DODGE? exceptionally compelling as this homicide investigation enters a new phase of desperately needed attention.”

“When I first reported this story in 2012, I was amazed by Carol Dodge’s determination to help exonerate the man convicted of killing her own daughter,” said Keith Morrison. “I’ve been thinking about this case ever since my first visit to Idaho Falls, and it has only become more complex and controversial in the years that followed. After 20 years behind bars, Chris Tapp has been released from prison, and Carol Dodge is still searching for the killer of her only daughter, Angie. I will continue to follow this unsolved case.”

Leading into coverage of Tapp’s release and the latest developments in the unsolved murder case, WHO KILLED ANGIE DODGE? revisits the investigation surrounding Angie’s death through Morrison’s original 2012 interviews with Carol Dodge, two former Idaho Falls Police detectives who handled Tapp’s interrogations and others close to the case.

Five years later, in 2017, the hunt is still on for the killer. Morrison returns to Idaho Falls to report on the latest developments with new interviews with Carol Dodge, Tapp’s public defender and a man who was falsely implicated in Angie’s murder but has never spoken on camera, until now.

In May 2017, the Idaho Falls Police Department announced a new Angie Dodge tip line and released computer generated sketches of the man who left DNA at the crime scene. Meanwhile, Tapp’s attorney continues to work with Carol Dodge as she pursues her own investigation and track down leads.