Your story appears to be fake!
There is currently 3.85 bitcoins being sent to that address right now. Why would you be sending to it if the private key has been compromised? Who else would send to it???
I send to it because I don't know my wallet was stolen. When I know I send out instantly!
It's hard to believe that you would be managing so many bitcoins using paper wallets as such, and that you did not take the time to manage things properly. For that kind of value, you should be using a hardware wallet.