There were significant developments in Daniel Penny’s subway chokehold trial.

The judge dismissed the top charge of second-degree manslaughter, after jurors said they were deadlocked, unable to come to a unanimous decision.

Earlier Friday, Judge Maxwell Wiley had given jurors an Allen charge — an instruction urging them to make every effort to reach a verdict.

Bernarda Villalona, a longtime trial attorney and former Brooklyn assistant district attorney, joined NY1 political reporter Bobby Cuza on “Inside City Hall” Friday to break this down.