This is a very helpful article that I stumbled on by Age of Shitlords! It details exactly how you can locate the person who reported you on Facebook. Turns out it's a whole lot easier than you might expect.

Age of Shitlords also has other articles that you'll find interesting and helpful and I would encourage you check out his blog as well

As per usual this is the link on Facebook please feel free to join the groups. Spammers and Trolls will be deleted forthwith