Tupac Murder Suspect Keefe D Fights Fellow Inmate in Las Vegas Jail newsthirst.

The man cops say is responsible for Tupac Shakur‘s death was involved in a jailhouse brawl while awaiting trial in his 2Pac murder case … and now he’s facing a new charge.

Duane “Keefe D” Davis got into a physical fight with a fellow inmate at Clark County Detention Center in Las Vegas … according to multiple reports.

Keefe D and his opponent engaged in “mutual combat by grappling and throwing closed fist strikes” … and Keefe D allegedly put the other guy in a headlock.

Sounds like the fight was pretty intense … reports say the two men were only separated after a corrections officer doused both inmates with pepper-spray.

Keefe D is now charged with battery by a prisoner, according to new legal docs obtained by TMZ. An officer reportedly says Keefe D told them he was “just standing his ground.”

Tupac’s alleged killer has been in custody in Sin City since September 2023, when he was indicted for the late rapper’s murder … the first big break in the cold case for a long, long time.