Karen Read’s second murder trial was a rematch for the lawyers after the first ended in a hung jury last year. CNN correspondent Jean Casarez answers key questions about the case after Read was acquitted of murder Wednesday.

Jurors in the Karen Read trial are deliberating for a fourth day inside Norfolk Superior Court as they attempt to reach a verdict in the high-profile case. The deliberations come a day after the jury indicated in a question to Judge Beverly Cannone that they could be facing the possibility of being a hung jury on one charge.

Jurors spent more than 20 hours deliberating in the Karen Read case. Nearly a year ago, the first trial ended in mistrial.