Duane "Keffe D" Davis, 63, was sentenced Tuesday to 40 years to life in prison by Nevada District Court Judge Carli Kierny for orchestrating the September 7, 1996 drive-by shooting of Tupac Shakur near the Las Vegas Strip.

Davis had been convicted of first-degree murder with the use of a deadly weapon on August 31, after a Las Vegas jury needed only about three hours to reach its verdict following a two-week trial.

The sentence includes a 20-year mandatory enhancement for profiting off the murder, according to NBC News. Davis declined to address the court, saying only "No, I'm good," and vowed, "I'm appealing this case for sure."

Judge Carli Kierny directly confronted Davis's years of public boasting.

"For three years, I've heard you say some variation of the same thing... 'Yeah, I was involved in this. But I'm different. I've moved on. I got out of Compton. I'm a grandfather now,'" she said, adding, "I'm here to tell you that's not how this works."

She told him, "You don't get to take a man from his family. You don't get to take his very life, his whole future from him, and just walk away from it, especially when that man is Tupac Shakur." The judge noted it took 30 years for justice to be served in the case.

Tupac's sister Sekyiwa "Set" Shakur gave an emotional impact statement, calling her brother her protector and the "promise of all our grandparents."

"He was born an icon," she said, describing how their mother raised him to be a human rights activist and calling him "who God trusted to take care of me."

She asked the judge to impose the maximum possible sentence, saying anyone who takes a life like his "deserves every minute of the maximum amount of punishment." Stepbrother Maurice "Mopreme" Shakur made the same request.

Through their remarks, Davis was seen rolling his eyes, and he sat stoic as the family spoke.

Davis is the only person ever charged and convicted in Shakur's murder, one of America's most famous cold cases.

Prosecutors argued he never fired the fatal shots but acted as the "shot caller," obtaining the .40-caliber Glock, passing it to the back seat of the white Cadillac, and giving the green light for the attack.

The case broke open when Davis released his 2019 memoir "Compton Street Legend" and repeated his account in interviews, which prosecutors said voided his 2008 proffer agreement with police.

Prosecutor Marc DiGiacomo said the 63-year-old is "guaranteed to die" behind bars, while Rolling Stone reports the conviction caps a probe that ran three decades.

After a Mike Tyson fight at the MGM Grand, Shakur and his entourage beat Davis's nephew Orlando "Baby Lane" Anderson, part of a feud between the South Side Compton Crips and the Mob Piru Bloods tied to Death Row Records.

About two hours later, Shakur was riding in a black BMW with Suge Knight when a white Cadillac pulled alongside at a red light and gunfire erupted. Shakur was hit four times and died six days later at 25; Knight survived.

The other alleged Cadillac occupants — Anderson, Deandrae "Big Dre" Smith, and driver Terrence "Bubble Up" Brown — all died between 1998 and 2015, per Rolling Stone, leaving Davis the only one still alive.

Davis's lawyer Michael Sanft says he plans to appeal, arguing prosecutors waited too long to bring the case and that there was no physical evidence, such as a murder weapon, tying Davis to the killing. The defense had claimed investigators "can't put Orlando in the car" or even Davis in Las Vegas.

Former Death Row boss Sean "Diddy" Combs came up repeatedly at trial over Davis's old claim that Combs offered $1 million for the killing; The Hollywood Reporter says Davis walked that back after his conviction, and Combs has long denied involvement.

Clark County DA Steve Wolfson says his office doesn't believe it has sufficient evidence to charge anyone else, though he would reconsider if new evidence emerges.