a guy in the forum I often visited described same experience but he had not received ransom request at that time when he posted.
A trader for sure. Even though 90% of the scammers do not get caught but if you ever end up to be in the 10% (1 in 10 scammers. That's still a high probability), you will get the worst of the worst of the punishment. Whereas even though only 10% of the traders make it, when you do make it, you reap the highest of the highest of the rewards. Look at Roaring Kitty, 90% of the time he did not succeed, just this one chance, actually less than 10% of the chance that he did succeed, look how much money he made?? If you apply this mentality to trading, this is another proof of why you shouldn't aim to maximize the win/lose ratio but to maximize the profit/loss ratio.
Contact police if you didn't. It will do nothing for your case but reporting it is a prerequisite for accurate statistics on how much money disappear due to these scams, which in turn might lead to action somewhere.