The reputed gang leader connected to Tupac's murder case is finally gonna do hard time -- but for a completely separate case ... TMZ has learned.
Darnell Brim is getting 10 years in federal prison after ATF agents caught him trying to sell crack cocaine. Brim is believed to be one of 4 men who were riding in the white Cadillac that pulled up to Suge Knight's car in 1996 in Las Vegas. Someone in that car opened fire, killing Tupac.
Brim - Sting - Operation
Brim was busted during a 2013 sting operation. He...