Pakistan, Oct. 15 -- A former gang leader was sentenced to 40 years to life in prison on Tuesday for orchestrating the 1996 drive-by shooting death of hip-hop star Tupac Shakur in Las Vegas, capping the prosecution of a long-unsolved murder that shaped the golden age of rap music.

Duane "Keffe D" Davis, 63, found guilty by a jury in August of first-degree murder, showed no emotion as he was sentenced to two consecutive terms of 20 years to life - one for murder, one for use of a deadly weapon - during an hour-long proceeding in a Las Vegas courtroom.

Shackled at the waist and dressed in blue prison garb, he argued briefly with the judge over how much credit he was due for time already served but said little else during the hearing.

Whe...