Just invoke the authorities. Canada isnt Burkina Faso. The police or whatever cybercrime unit they have there is the first place to start and confirm at least the identity. If they fail to do anything you can always lawyer up and try to go for it yourself later.

For the record, when Pirate's ponzi collapsed there where a bazillion threads about pooling money, getting lawyers, personal threats blah blah blah, in the end it was the SEC that nailed him.