I'm being harassed on Facebook by someone I've never even met. What do I do?

[Brandi]

I'm not able to block him yet, because I've blocked him before and removed it. So Facebook is saying I have to wait 48 hours to block him again. He has sent me like 30 pms today (none of which I replied to) and is posting threads on groups I'm a member of, tagging me in them. I had to remove myself from one. He's calling me swine, evil, fake, stupid, spoiled brat. Saying I have demons in my heart ? I told him if he messaged me again I would contact the police and he basically said to go right ahead and has pmed me like 10 times since then. What do I do if I can't block him? He's in Canada and I'm Kentucky, so I can't really contact the police. Plus he hasn't threatened me, he's just harrassing me and refusing to stop because he knows I can't block him again :/. Should I just deactivate until I can re-block him, or do I have another option?