OJ Simpson paid Gambino gangsters to kill ex-wife Nicole Brown because he was jealous of her 'sleeping around', claims witness who mobsters kept silent for 30 years by sticking a gun in his mouth and threatening to murder him and his family

OJ Simpson was so jealous that his ex-wife Nicole Brown had moved on from their relationship that he paid notorious Mafia gangsters to kill her, a key police witness has claimed.

Last week, MailOnline revealed the same witness placed OJ Simpson at the scene of the horrific double murder of Nicole Brown, 35, and her friend Ron Goldman, 25, on June 12, 1994.

Nicole was stabbed seven times in the neck and scalp. It was such a violent attack that when was found lying in a pool of blood in the fetal position, she was nearly decapitated.

However, with the help of his 'dream team' of lawyers, the iconic NFL star was found not guilty when his grueling trial came to a dramatic end on October 3, 1995 — as nearly 150 million people watched the verdict on television.

On April 10, Simpson died aged 76, surrounded by his family after a battle with cancer.

Now with another exclusive recording, MailOnline can reveal how witness John Dunton claims Simpson 'didn't give a s***' about his ex-wife and paid 'a lot of money... to have her whacked'.

Dunton is guarded about how he knew Simpson hired the mob, but claims he learned it from someone 'in his circle.' 

Private investigator Paul Barresi, who provided his recording of Dunton's interview to MailOnline, says he first contacted the witness 30 years ago - and decided to try him again after OJ's death. This time he agreed to talk.

Pictured: OJ Simpson with his arm around wife Nicole at the opening of the Harley Davidson Café in 1993, a year before she was killed

O.J. Simpson sits at his arraignment in Superior Court in Los Angeles on July 22, 1994

OJ Simpson was found liable in civil court for $33.5million for the murders of Ron Goldman and ex-wife Nicole Simpson in 1997 

John Dunton, 62, (pictured) stayed silent for 30 years after mobsters threatened to murder him and his family if he spoke out

Dunton said OJ Simpson didn't 'give a s***' and 'the only thing he cared about was getting his wife out'. He added: 'OJ owed money to the mob too, but he paid additional to have her whacked. He paid a lot of money, back in those days'

Hollywood private investigator Paul Barresi, 75, (pictured) spoke to John Dunton, 62, who claimed OJ Simpson was at the scene of the double-murder

Dunton, 62, broke decades of silence to say on tape that OJ Simpson was at the scene of the double murder along with four gangsters from the Gambino crime family who he hired to kill his ex-wife Nicole Brown.

Although Dunton initially spoke to LA police after the brutal double murder, he went quiet after mobsters pushed him to his knees, stuck a gun in his mouth and threatened to murder him and his family if he spoke to police or a grand jury.

Speaking to Hollywood private detective Paul Barresi, 75, the PI for a slew of celebrities including Sharon Stone and Amber Heard, Dunton said Simpson was absolutely responsible for the murders.

Dunton said OJ Simpson didn't 'give a s***' and 'the only thing he cared about was getting his wife out'.

He said: 'He kept hearing from other people that his wife was sleeping around with a lot of guys. He was jealous. He wanted to end everything.

'OJ owed money to the mob too, but he paid additional to have her whacked. He paid a lot of money, back in those days.

'I don't how much was paid but a lot was paid. It so happened Goldman was there, and he got whacked too.'

Pictured: Blood at the horrific scene of the double murder of Nicole Brown and Ron Goldman

OJ Simpson in handcuffs after he was arrested at the scene of the crime the day after his wife Nicole Brown Simpson and Ron Goldman were killed in Brentwood, California

Simpson holding hands with his children Justin and Sydney at the funeral of their mother, and his ex-wife on June 16, 1994

Dunton has bravely waited 30 years for many of the deaths of the mob gangsters and the man at the centre of it all, OJ Simpson, so he can tell the world what really happened.

He said: 'I just want to get it off my chest that's all. You know, it's been a long time. You know, the truth should come out one way or another.'

During the same phone call with Barresi in a segment released by MailOnline last week, the former police witness previously said Simpson '100 per cent' paid the mob to kill his ex-wife.

He added: 'The four guys that came, they were members of the Gambino family.

'They were involved in all kinds of stuff. You know what the mob does.

'The bottom line is everything was done with OJ's direction. That's what happened.'

He said: 'He was there. I don't know what he did, but he was there. He knew these guys were going over to Nicole's house to kill her.

'He wanted to be there. I don't know why.

'I'm glad he's dead to be honest. What he did was a really horrible thing and I went through hell because of that.'

Dunton first met Barresi when the private detective was hired to find out what he told the police about Anthony Pellicano, Michael Jackson's private investigator who ended up spending 16 years in jail for wiretapping and racketeering. 

Dunton first met Barresi when the private detective was hired to find out what he told the police about Anthony Pellicano (pictured in 2021)

Michael Jackson's private investigator Pellicano (pictured in 2003) ended up spending 16 years in jail for wiretapping and racketeering

Barresi told MailOnline that the police working the Brown and Goldman case had gone to Dunton for help in understanding what had happened.

He was later hauled before a grand jury investigating OJ Simpson's best friend Al Cowlings, but he refused to answer their questions and was jailed for 23 days as a result.

The Hollywood private investigator said: 'The detectives approached him and initially he was cooperating.

'And then he went silent. They gave him a grand jury subpoena and from there Dunton didn't cooperate at all.

'It was before he got the subpoena [that] the mobsters had already made contact with him.

'They scared the s*** out of him. The mobsters must've suspected he was going to be subpoenaed, so got to him early.' 

His trial — and shocking acquittal — by a majority black jury captivated America, drawing one of the biggest audiences in TV history

Simpson (number 32) in action against the New York Jets in the snow at Shea Stadium, New York, on December 16th, 1973

Simpson (R) whispers to Defense attorney F. Lee Bailey (L) during testimony of FBI special agent William Bodziak 19 June during the O.J. Simpson murder trial in Los Angeles

Members of the news media watch live television coverage of the O.J. Simpson slow speed chase

Al Cowlings, with O.J. Simpson hiding, drives a white Ford Bronco as they lead police on a two-county chase along the northbound 405 Freeway towards Simpson's home

Simpson reacts as he is found not guilty in October 1995

Dunton described the terrifying moment he was threatened by mobsters who had followed him to Mulholland Drive from a strip club he had visited on Sunset Boulevard.

He said: 'The guy that put the gun in my mouth, he f***ing whacked several people and if he whacked me it wouldn't be any different. He also said they'd whack my family too.

'When they threw me down on my knees and made me cross my ankles over and put a gun all the way down my mouth, it was scary.'

Ron Goldman's father Fred (centre) and his daughter Kim and wife Patty are pictured in court during trial

Former NFL football star OJ Simpson reacts after learning he was granted parole at Lovelock Correctional Center in Lovelock, Nevada, on July 20, 2017

In the latest recording, he added: 'He said, ''I've got f***ing bullets for you and your family's name on it in my gun. We know where you and your family live, we'll f***ing kill you. We don't fool around.

'''You know who we are. So don't say anything. You go to court and say anything we're gonna f***ing kill you and your family.''

'And he says ''we'll get to you in jail too, we don't care where you're at. We can still get to you.'''

Although Dunton knows the name of the mobster who threatened him, he has decided not to say his name as while the gangster is 'old,' he's 'still alive'.

After he and his family were threatened, Dunton stopped talking to law enforcement.

He said: 'I didn't say anything. When OJ got out of jail he called me two or three times. I didn't talk to him. I didn't want to meet. I just hung up.'