He has multiple grounds for an appeal. He had an all white jury in a racially charged case. The district attorney removed potential Black jurors during jury selection without strong, race neutral reasoning, which is called a "Batson Violation". The judge had errors in his instructions to the jury on what self defense is.
Today’s Supreme Court decision effectively guts a key pillar of the Voting Rights Act, freeing state legislatures to gerrymander legislative districts to systematically dilute and weaken the voting power of racial minorities - so long as they do it under the guise of “partisanship” rather than explicit “racial bias.” And it serves as just one more example of how a majority of the current Court seems intent on abandoning its vital role in ensuring equal participation in our democracy and protecting the rights of minority groups against majority overreach.
The good news is that such setbacks can be overcome. But that will only happen if citizens across the country who cherish our democratic ideals continue to mobilize and vote in record numbers - not just in the upcoming midterms or in high profile races, but in every election and every level.