I don’t think there are enough people in this to constitute a class?
Classes are for when there’s an unknown amount of victims, and it’s up to the victims to determine if they fit the billing. This is the opposite, they know exactly how many victims there are, and who those victims were, it would be up to each victim to file a lawsuit, and other victims will have no access to joining into this lawsuit (unless the prosecution invites them on, maybe to as a way to get their testimony?)