Can I find the IP address of a Troll on Facebook?

[Paul]

It is possible although you would have to have access to some data that may well be restricted unless you have a warrant. Even then you may not be able to determine the exact location of the individual computer. For example if they are using a router with the DHCP function activated, as many people are these days, you will get an IP address of the ISP's nearest hub not the specific location of the machine in question. So finding the exact user is virtually impossible. You can find the general location but I believe that protocol will block you unless you can prove that the person in question has done something illegal.