Not really.
He has witnesses saying he has a history of carrying one. The shells Relli supplied didn't match any of the legal guns found in Rocky's home.
There's no starter pistol from the defense and no actual gun from the prosecution.
If police found no evidence from an actual gun at the scene and the only evidence came from Relli who has proven to be an unreliable witness than I'd lean towards the gun being a starter pistol.
I'm assuming Illz is going to testify and back up what Twelvvy said. They may bring out more people to testify that Rocky carried one.
Will the jury believe any of these negroes is anyone's guess?