Hey, just go to a court of law and sue The Rock Trading on a civil basis. What are you waiting? Posting on a thread as a hobby?
It doesn't work for two reasons:
1) is retarded, has some mental handicap and therefore does not get there
2) he is in bad faith, those bitcoins were the result of some theft or ransom, therefore going to the authorities is not the best choice, better to be a jerk in the forum