Over two decades ago, Tupac Shakur was shot and killed in a drive-by shooting — and his murder remains an unsolved mystery.

Now, A&E is hoping to bring fans of the iconic rapper closer in their six-hour limited series, Who Killed Tupac?. Led by civil rights attorney Benjamin Crump, the investigation by the cable network will look at Pac's friends, family, and associates as they try to uncover what really happened on September 7, 1996.

MORE: How Did Casey Anthony's Daughter Die? Here's What We Know About the Little Girl's Death

Despite the lack of answers, theories have been surrounding Tupac's death for years and several people have stepped forward claiming to know who pulled the trigger, including infamous record producer Suge Knight, who was in the car with the Poetic Justice actor at the time.

Here is everything you need to know before tuning into Who Killed Tupac? premiering on June 29 at 9 p.m. on A&E.

Suge Knight reveals who killed Tupac

Two decades years after his murder, Suge is finally coming forward and revealing who killed Tupac on that fateful night in Hollywood. In a signed affidavit, Suge, who is currently in jail on attempted murder charges, claims that Reggie Wright Jr. and his ex-wife Sharitha were behind the shooting, and he was the main target. The couple allegedly conspired to murder Suge to gain control of Death Row Records.

Former LAPD cop claims Diddy killed Tupac

The Bad Boy rapper was accused of being the mastermind behind Tupac's murder by a retired LA cop, who claimed Diddy paid former gang member Duane Keith "Keffe D" Davis $1 million to kill the rapper and Suge Knight.

However, Diddy denied the allegations, saying, "The story is pure fiction and completely ridiculous.”

MORE: Paris Jackson Claims Her Late Father Michael Jackson Was Murdered by His Doctor — "It Was a Setup"

Notorious B.I.G denies killing Tupac

Before his own death just six months after Tupac was killed, the East Coast rapper denied playing a role in the drive-by shooting and claimed to be in a NYC recording studio at the time of the murder.

tupac suge knight getty

Is Tupac still alive?

Before his death, Tupac took on the nickname Makaveli, after the philosopher Niccolò Machiavelli, prompting many to believe he faked his own death. The most popular theory is that Tupac is living in Cuba with his aunt, Black Panther activist Assata Shakur, under political asylum.

Tupac and Kidada Jones

At the time of his death, Tupac was engaged to Kidada Jones, the daughter of music mogul Quincy Jones and sister of actress Rashida Jones. Of his death, Kidada wrote, "Tupac was the love of my life. He and I lived together for four months and then he was murdered in Las Vegas in 1996. It was the most horrible thing that ever happened to me.”

Who is Benjamin Crump?

The lead investigator in the A&E series is actually the civil rights attorney best known for his work in the George Zimmerman case. He is also the attorney for the family of Michael Brown, the 17-year-old teen who was shot and killed by police in Ferguson, MI and the family of Tamir Rice.

More From Life & Style

Who Killed Gianni Versace? Details Surrounding the Fashion Designer's Shocking Murder

JonBenét Ramsey's Brother Burke Claims He Didn't Kill Her — But Thinks He Knows Who Did

Why Is Casey Anthony Not in Jail? Details on How She Was Found Not Guilty!