Replying to I've been hacked

alright, i got home tonight a little drunk and so i was on AIM and facebook talking to people
so i find out that there is someone, yet again, making a fake facebook that says they are moving to my town (this has happened before). I call them out on it and they start telling how i can either play along, or i can ruin the fun. of course i tell them i will play along, but i want to know whos behind this.

so next thing i know, facebook is saying i need to log in to do this and that... so the i try to log in and my password doesnt work. then i try to log in to my gmail to change the password, and it doesnt work. now i realize i've been hacked. after hard work, i FINALLY get my gmail back and am able to get my facebook back. I message this person and tell them the jokes on you, i will call the police and they will track you IP, enjoy your laughs. they respond back "i don't think so, we're even" and then they delete their account entirely.

so now i need revenge. its somone i know. not necissarily friends with, but i know this person. somehow, they know my password too. i dont give my password to anyone. the last (and i think ony computer) i logged into facebook with was one of my friends who would never do this. i tried calling him ot ask if anyone was at his house and he was asleep. im searching for spyware or anything that could have keylogged (which i highley doubt would happen in all of like 15 minutes, right?).

im asking gmail and facebook to send me the IP's that have logged in so i can try and look it up, but i dont know if that will work out

i need your help NS, can anyone tell me how i can find this fucker and brutally murder him?