I'm sorry to hear of this incident! Perverts like that should be publically shamed. then castrated.
You should discuss this a family member, to see what can be done (only if you choose to pursue it) which i sincerly hope you do. Do not be afraid to take any neccesary steps to make it clear that this kind of abuse will not be tolerated, you can make a complaint at the Police Station.
Yes it will bring bad publicity but it's what needs to be done in order to stop kanjar like these. Look at the Church, how many peadophlia cases have they covered up? it's all out in the open now isn't it!