Never would've pegged Jerry Heller as a John Lennon fan -- but the ex rap mogul says Suge Knight's murder case is absolutely a case of instant karma.
Heller and Suge's famous rivalry goes back decades ... to when Knight allegedly forced Heller's client Eazy-E to sign over the rights to Dr. Dre.
So Heller didn't pull any punches last night outside Craig's when we asked him about Suge's murder trial. He even compared Suge's arrest to O.J. Simpson's ... calling it "payback time."
As for the upcoming NWA movie, Heller's still angry he wasn't consulted, but says he'll be watching very closely ... with someone special. This is gonna get interesting ...