Rapper Bankroll Fresh was shot to death Friday night.
Cops say gunfire erupted outside an Atlanta recording studio. The shootout was bedlam ... more than a dozen shell casings were found. We don't know if anyone else was hit.
2 Chainz -- also from Atlanta -- tweeted about the "Hot Boy" rapper's death ... "Man I'm a fan of Bru and always will be, I'm in shock at the moment !! Senseless deaths we just got to stop it, I'm speaking up now."