Someone made up a fake account on facebook to threaten me because they hate something abt my family?

[lola91]

Someone who claims they know me & my family & where I live keeps sending me psychotic emails threatening me ..They seem to rlly hate my mom & whoever it is wants to take it out on me & i mean they keep saying they cant wait to see me at my college next year & I'm getting annoyed of being told "watch it b**** I know your family.. the person tried to blackmail me except the stuff that the person tried to blackmail me with was completely fabricated like sending compromising pictures to everyone I know but I'm 16 & my entire life I havn't really done anything comprimising or stupid in the vacinty of a camera & I guess they're planning on photoshopping a picture & send it around but Id like to find out who the person is before tht happens I think I know who it is cause my mom has been in a fight with this woman who likes makin things up but I'm not completely sur ..Wht should I do abt this ? Does anyone know how to get an IP adress of a fake facebook account?
It could possibly be a family friend ..Is there any way I could make them come forward..& does anyone know anything abt the Internet Crime Cell????
I called 911 & they ended up telling me to call the RCMP so I 'm looking for their number right now cause the police station I called didn't have it for my area..Thankyou for your answers