Let the legal authorities of the concerned people's country decide it. Till then we absolutely stand no right to ruin Zverev's reputation. Its like applying a bad stain to somebody's fresh white cotton shirt. No matter however you wash it afterwards it won't go away completely, will leave its shadows. Just like that, even if Zverev comes out totally innocent his stain will never go away.
And in this case, the reality is as clear as the message of prophet (peace be upon him), the woman doesn't want even to approach legal authorities where you actually have to prove your case to defame someone and get them punished. She rather approached the easy media trials' way, where you can speculate basically anything controversial About anyone famous, even flat out lies, play a victim card & get sympathy by being from so called "oppressed" group and get that person easily defamed, ruined & punished (mentally & psychologically which is more than a physical or economical punishment) to justify false ego and wicked pleasure of ruining someone's reputation and life.
Almost the entire #metoo movement was the same.