What choice do you give us when you allude to knowing something but won't disclose what?  You've been on this forum since 2017, Gox was hacked in 2014 and you only just pipe up now claiming to have relevant information?  Surely even you can see how suspicious that looks.  Look at it from our perspective.  We get all kinds of people here claiming they supposedly "know something" but the vast majority don't know anything.  

But if you are genuine, the Trustee for handling repayments to Gox's creditors is called Nobuaki Kobayashi.  Contact them.  They'll be far more actively involved than Karpeles is.  Even if Karpeles wasn't a useless, grossly negligent tit, the insolvency means it's likely that he's not even permitted to be involved in the proceedings by this point.  The lawyers are in charge now.