Someone is harrassing me on facebook, how can I find out who they are?

[anon]

They have made multiple profiles, so when I block one, theres always another.

I just want to know who they are - maybe a direct email from me will scare them enough to stop.

Are there any free tools I can use to find out where they are, who they are, etc?
Well, Like I Said....Every Time I Report Someone A New Fake Profile Starts Harassing Me. You Should Really Stop Typing Like This.

[Daniel]

You Can Not Find Out Who They Are Only Police and the Facebook Admin Can Track That Stuff Down if you Feel you Are Being Harrased Report The Person to Facebook and The Police

[Mike]

Download a program called wireshark! Watch a tutorial on it of how to grab an ip from someone who is sending you messages from Facebook. When you have the ip adress copy and paste it into Google and you can find an exact location. It can be givin to the police

[abraXus]

there is no way to find out who they are