<human>: Condense the text into a few key points

My girlfriend (we both love each other) broke up with me because she wasnt ready for a relationship, and she finally told me why. When she was 10, a 18 year old guy came into her bed, kissed her, and touched her in inappropriate places and everything. I'm not sure if that counts as rape, but fuck, I'm counting it as rape. I'm the first person she's told about this ever just so I understand why she wasnt ready for a relationship (she wouldnt be able to kiss me without thinking of the man who stole her first kiss from her) And of course I was understanding of this but holy fuck am I furious. Is there anything I can do against the man who did that to her? He was a family friend of hers and when she went to india last year she saw him again. (we live in australia) I want to be able to do whatever I can to make sure he gets what he deserved. Is there possibly anything I can do? He probably made sure to say something to her to make sure that she never said anything to anyone. I'm willing to do anything to get him down, she probably wont be on board with this idea but I cant feel this helpless, I need to take down the man who raped the girl I love. (we're both 16) Obivously if I tell the police nothing can happen because there's no evidence, and he lives in India, but there has to be something I can do. 
Sorry I'm getting so emotional in this, I cant tell anyone so this is really a bit of a vent too.
<bot>: The person I love was molested/raped at the age of 10, the person who did that to her lives in India. I'm the only person who knows. What can I do to take him down?