New information about the murder of Jimmy Hoffa has come to light, according to a former Teamsters president and Hoffa's son.

Hoffa, a former union leader and iconic agent of change, was murdered in the mid-1970s due to a conspiracy that included the Detroit Mafia.

Jimmy Hoffa’s son, James Hoffa, spoke to reporters about the conspiracy and how the then-President of the Teamsters Union, Frank Fitzsimmons, worked with the criminals to kill his father.

"They had it set up to murder him, and they did," Hoffa said.

More details

James Hoffa went on to speak about the events surrounding the violent death, giving insight into why his father was targeted.

"They actually got together to kill him because they couldn't stop him any other way,” Hoffa said. He was an unstoppable force.”

James said that his father, who was widely considered a legend, was getting his campaign in order to run for International Brotherhood of Teamsters president once again, which could have unseated Fitzsimmons in 1976.

"Fitzsimmons was afraid that Hoffa was coming back, and he says, 'I want this job. I want to keep this job.' And the mob didn't want him back, and I think they got together. They'd say, 'How do we make sure he doesn't come back?' because they were afraid. They knew if he did come back, he would win the election and he would take back the union. They knew that, and the only way to stop him was to kill him."

Hoffa’s start

Hoffa, born on Valentine’s Day in 1913 in Brazil, Indiana, disappeared on July 30, 1975, near Detroit, Michigan.

He was the son of a coal miner from Indiana who died when Hoffa was a small child, and his family later moved to Detroit.

He left school at the age of 14 and worked odd jobs, and began unionizing in the 1930s.

He was known for being a labor leader who served as the president of the International Brotherhood of Teamsters from the 50s-70s, and his time in power was fraught with controversy.

The fallout

The disappearance of the elder Hoffa was reportedly “devastating to my family, to my sister,” James Hoffa said.

"My father was everything, and my mother died five years later of a broken heart. She never got over it."

He spoke emotionally about the impact his dad’s death had, saying, “We don't have closure because we don't have a grave. And it's amazing what that means to people. We are left with the love of him, but what else do you have? We have a hole in our heart."