A crime was committed, if there is enough evidence then the state is required to prosecute and the victim has not choice in this. The victim can say they don't care and that will often hold weight for the prosecution, but that is the government's choice not the victims.

The victim sometimes file a civil lawsuit against the criminal, that is their choice. That is not a criminal matter though and different rules apply.

The attack was only a couple weeks ago. Looks like the lawyers responsible are gathering evidence and preparing to file charges, but they need to figure out exactly what crimes were committed by who before they can do so, thus more investigation is needed.

The "victim" doesn't have the final choice but their position is heavily influential and prosecutors don't decide if a crime was committed, that only happens at the end of the judicial proceedings. Calm down.