An aging ex-gang leader was sentenced Tuesday to 40 years to life in prison for orchestrating the 1996 drive-by shooting of rap icon Tupac Shakur near the Las Vegas Strip.

The killing, rooted in a long-running gang feud, had gone unsolved for decades — captivating the public and tormenting Shakur’s loved ones — until Duane “Keffe D” Davis started bragging about it in interviews and a memoir.

Davis, 63, was convicted in August of first-degree murder with the use of a deadly weapon. A former leader of the South Side Compton Crips, Davis stared blankly at Judge Carli Kierny as she imposed a penalty that, even with credit for time served, won’t see him eligible for parole until he’s at least 100.

Davis, whose lawyer said he will appeal his conviction, is the only person ever charged in Shakur’s death. The late rapper’s legend has only grown in the years since, and his songs continue to resonate with themes of hardship, love and Black struggles.

Shakur’s sister, Sekyiwa “Set” Shakur, said it was hard listening over and over again to Davis describe how he hunted and killed her brother, cutting him down at age 25, just as his popularity as a musician and actor was peaking.

Gentle and kind, Shakur was his family’s protector, she said. Had he survived injuries that included the loss of a lung, he would have left rapping behind and delved into activism, treading the path of luminaries like Malcolm X and Martin Luther King Jr., and perhaps even politics, she said.

“This man’s life mattered,” Sekyiwa Shakur said as family members cried in the audience.

Shakur’s brother, Maurice “Mopreme” Shakur, said the killing has been “devastating, heartbreaking and sad” for him, his family and Shakur’s fans.