'When our book,came out and we were working on the movie, we gave the salient points of the book (Tupac: 187 The Red Knight) to Thaddeus Culpepper, who read them to Suge Knight,' said co-director Richard Bond. 'Suge's initial response was, "Who the hell are these guys?''
'He admitted to Culpepper that the theories in the movie were true,' a source said.
Suge was so intrigued he sent his private investigators, to discover how the writers and directors found out about what happened.
The documentary also claims that Suge had always been the real target of that fatal shooting. Tupac was just in the way.
According to his lawyer, Suge believes both Sharitha and White plotted his death together.
The shooting of Tupac, 25, has been surrounded by conspiracy theories ever since.
They include claims that Tupac faked his own death with the help of the first cop on the scene, Chris Carroll, who is now retired, and fled to Cuba. There were even theories that Suge had ordered an assassination hit on Tupac and that Carroll was involved.
Suge, 50, had always denied he was behind the shooting but until now was unwilling to name who it was.
Tupac's last public photograph was taken as he was riding in the car with Death Row Records co-founder Suge on September 7, 1996, in Las Vegas.
The pair had just left a Mike Tyson fight held at the MGM Grand, when the 25-year-old rapper was shot as he stood up through the sunroof to talk to a group of women while the car was stopped at a traffic light.
Shakur was hit four times - twice in the chest, once in the arm, and once in the leg.
THOSE TUPAC CONSPIRACY RUMORS
He eventually died six days later on September 13.
Bond believes Suge, who is behind bars awaiting a separate murder trial, is ready to make a statement about Tupac's murder because it proves that he has been a target of gangs out to get him for years.
Suge, who was shot multiple times in 2014, has been in jail since his arrest for mowing down two men in a burger stand parking lot in Compton in 2015, killing businessman and friend Terry Carter and injuring Cle 'Bone' Sloan.
The two men had been working as security on the location set for the NWA movie Straight Outta Compton and had got into a dispute with Knight earlier in the day.
Prosecutors have charged Knight with murder and attempted murder. He has pleaded not guilty and claims he accidentally struck Carter as he fled the scene in fear for his life suspecting an armed ambush.
Bond and Carlin insist Knight was a victim in Vegas, which could be evidence of his that he was also telling the truth about his 2014 shooting at One Oak and in the Compton case he is only trial for.
'The hope is Knight's confirmation of the story laid out in Compton (the film) may put a final stamp to close this mystery, after 20 years.'
New of the potential break through in the now decades-old case, come as Tupac is due to be posthumously inducted into the Rock and Roll Hall of Fame on Friday.
The Harlem-born rapper's recording career may have only lasted five years before he was murdered, but it is the rapper's influence from beyond the grave that will be celebrated.
Tupac (left performing in 1994) has had major success, both during his five years making music and after his death. Meanwhile Suge (right in 2011) is behind bars facing murder charges
The black car in which Tupac and record label boss Suge Knight were driving in when the attack by an unknown gunmen occurred
The Las Vegas intersection between the Strip and Paradise Road, where the shooting occurred in 1996