So I got this email. And its really weird?

So I got this email, and it said that they're were individuals by the ages of 11-13 RAPING little girls and it showed graphic pictures of little girls sucking on. You know what. And it said in the email that they know I enjoy 'Minecraft' and I do? I enjoy playing the game. And they also said they know I enjoy Minecraft roleplay. (not sexual or anything roleplay, just like mother and father type stuff) I'm really freaked out and paranoid to go to bed. What do I do? Should I call the cops?
Added (1). https://gyazo.com/08485510aae15177e5d20b2b33d9d289

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