Was this an invasion of my privacy? Facebook? Take action?

[lovesintheair]

Some guy on Facebook who is NOT on my friends list and that I have never met or ever known in my entire life forwarded pictures of me to someone else without my permission. I don't even know how he saw my pictures to begin with because he is not my friend on Facebook. My plan is to send him a polite and short email and get right to the point, like a warning that I will take legal action if any of this happens again.

What are your opinions? Should I contact Facebook management? Is the email enough? What action should I take? What would you do?

I really want to SERVE his butt!! Stick it to him!
1. He is not in any of my friends networks.
2. My Facebook is private!
3. My pictures are not naughty or wrong.
4. I'm not planning on suing him.
5. I just want to warn him. He needs to back off. Freak him out a little.
6. He lives in London, England.
7. I have the proof. It was sent through an email and just by a stroke of luck, I stumbled upon it.