Definitely report it to the RCMP, but you can also report it to the US FBI via https://www.ic3.gov/default.aspx https://www.ic3.gov/default.aspx. I'd suggest no

Definitely report it to the RCMP, but you can also report it to the US FBI via https://www.ic3.gov/default.aspx https://www.ic3.gov/default.aspx. I'd suggest not mentioning that you're a Canadian citizen; just let them assume you're American so they don't use your citizenship as an excuse to just shut down the case and ignore it. I'm not suggesting you lie of course, but let them draw their own conclusions.