What do I do when someones pretending to be me on Facebook?

[Impala]

Someone I was very close to at one point in my life is pretending to be me. They have a ton of pictures of me from various sources (their phone, my actual Facebook, etc.) They're also exploiting personal pictures of me from when the individual and I were intimate (I know, allowing anyone to keep pictures like that is stupid. I've learned my lesson.) And pretending to be me openly with around 2,000 followers/facebook friends.
I'm not sure how to handle it. I found out about it once before and asked them to deactivate it (it was a huge deal, but I'm a forgiving person.) But now that I saw they reactivated it yet again I need some advice on what to do. I can't take this anymore.
I know I could report it, but that's not enough. This individual is sick in the head and there is no doubt in my mind that they would just make a new one.
I need some kind of action to be taken. Some kind of law against something like this. Because what they are doing is not right. My anxiety has skyrocketed.