Duane Keefe D Davis is accused of gunning down the storied rapper on theLas VegasStrip in 1996.
District Judge Jerry Wiese ordered Davis, 60, a reputed gang member, held without bail.
Shakur was 25 when he was gunned down near the Las Vegas Strip.
Tupac Shakur in 1994Getty Images
He died at a hospital six days later.
Recording as 2Pac, Shakur produced five No.
1 albums in a pioneering and influential career.
He was inducted into the Rock and Roll Hall of Fame in 2017.
