The police say up-and-coming Bronx rapper Kay Flock walked into a Harlem barbershop and shot an opp to death.
Surveillance video and Flock's lawyers say the situation was much more complicated and Flock wasn't the aggressor.
Flock has been charged with second-degree murder.
50 Centgave him a Christmas shoutout.
"Merry Christmas to my young boys y’all stay out of trouble, don’t hurt nothing God bless Happy Holidays," he captioned a photo of Flock.