I already explained why an attorney may not strike a defendant (lesser of two evils) and regardless of what the rally started out as, the focus change to a protest about George Floyd.
The juror lied on his questionnaire. This is grounds for an appeal. Will it be successful, I don't know. But grounds, very strong grounds, exist.
The issue with Mitchell is the shirt and I don’t think jurors were asked about shirts that they wore.
As for the MLK March, it was not a march or rally about George Floyd and that rally would have taken place at the same time and same place had the events in Minneapolis not taken place. Perhaps, Mitchell would have attended the MLK March even if those events had not occurred.
Chauvin’s lawyers did not do a great job a trial.