Eric Shawn speaks to Jack Goldsmith, current Harvard law Professor and former Deputy Attorney General of the United States under President George W. Bush. Jack's stepfather Chuckie Obrien is one of only two suspects in the death of Jimmy Hoffa still alive. Chuckie Obrien has been suspected of driving the car that took Hoffa to his death.

Eric Shawn speaks with Geoff Schumacher, Author, Historian and Senior Director of content at the 'Mob Museum' in Las Vegas. He shares with us the knowledge of  the largest repository of the nation's history of organized crime.    

Scott Bernstein, Mob Historian and Editor of 'Gangsterreport.com', was born and raised in a mob connected Detroit family. He is considered a top Mafia expert. Bernstein does not believe that Frank 'the Irishman' Sheeran killed Jimmy Hoffa, and he tells us why in this episode.   

Phillip Moscato, Jr., his father, Phillip Moscato Sr., known as Brother Moscato, owned the dump in Jersey City, New Jersey where it was believed Hoffa's body was taken and buried after he was shot in Detroit. The FBI searched the dump but came up empty. The reason, says a new theory, the body was moved after one of the mafia hoodlums went to the FBI. Phil told me that in 2014, two weeks before his father died of liver cancer at the age of 79, he sat with his son on his hospital bed and told...

Dan Moldea has been on the Hoffa beat since 1974. He wrote the landmark book "The Hoffa Wars" in 1978, and is the most prominent Hoffa expert in the nation. We teamed up for the most recent Fox Nation investigation. Phillip Moscato, son of mobster Pillip Moscato Sr., who says his dad told him that mob hitman Sal Sally Bugs Birguglio shot Hoffa, the body brought back to New Jersey and buried. And, Frank Copola, son of Moscato Sr.'s business parnter who says his father buried Hoffa in the dump...

"RIDDLE: The Podcast" accompanies the Fox Nation special, "Riddle: The Search for James R. Hoffa." In the podcast series, Fox News Anchor and Senior Correspondent Eric Shawn takes you behind the scenes of his investigation of the disappearance of the iconic labor leader, James R. Hoffa, who vanished in 1975. The podcast interviews are with people involved in the case or who have extensive knowledge of it: Former Philadelphia Mob Boss Ralph Natale, "I Heard You Paint Houses" author Charlie...

Ed Barnes, former Fox News Producer, details our investigation and offers a new motive for Jimmy Hoffa's murder, and where the body went.

Ralph Natale, the former Mob Boss of Philadelphia, on why Jimmy Hoffa was killed, how it came to be, and the role of the Mafia.

Charles Brandt, author of “I Heard You Paint Houses,” on Frank “The Irishman” Sheeran, Jimmy Hoffa and the ultimate betrayal.

David Ashenfelter, former Pulitzer Prize Detroit Free Press reporter, on covering Hoffa, Frank Sheeran’s claims, and what he thinks happened.

Dan Moldea, long-time Hoffa author and expert, on interviewing the suspects, who he says killed Hoffa, and the dark forces that led to the murder.

Matt Birkbeck, journalist and author, on the little known power behind Frank Sheeran: Pennsylvania Mob Boss Russell Bufalino.

Melvin Gudknecht, former I.R.S. investigator and author, on putting Frank Sheeran behind bars and what he was really like.

Fr. Jonathan Morris on Frank Sheeran’s religious journey, final confessions, and playing his priest in the movie “The Irishman.”

Jeff Hansen, former law enforcement officer and author, on what he says was Jimmy Hoffa’s ultimate fate.

"RIDDLE: The Podcast" accompanies the Fox Nation special, "Riddle: The Search for James R. Hoffa." In the podcast series, Fox News Anchor and Senior Correspondent Eric Shawn takes you behind the scenes of his investigation of the disappearance of the iconic labor leader, James R. Hoffa, who vanished in 1975. The podcast interviews are with people involved in the case or who have extensive knowledge of it: Former Philadelphia Mob Boss Ralph Natale, "I Heard You Paint Houses" author Charlie...