I've had my money stolen from Poloniex. Contacted poloniex- they said they can't do anything.
At this point I know there's no way to get it back, but I just want to report it somewhere within the legal system.
Can I report it to FBI or the local Police?
Any other places/people to report to?
Are you remember that the status of Bitcoin in every country was vague? There is not another place to report your case or stolen amount. That's crypto, even the exchange site was not able to protect or resolve your case. The cryptos were in a grey area, and that will be useless to report your situations in the legal constitution such as the police or FBI. But, can you try to trace the thief and find the thief's real ID? And make a pressure to send back your number.