Zodiac

Vallejo Police Department. -I want to report a double murder.

Dear Editor,

In this cipher is my identity.

I like killing people because it is so much fun.

I will be reborn in paradise.

Okay. I'm your shooter, Negro male adult,

This is the Zodiac speaking.

So I shall change my way of collecting slaves.

What's the most common double consonant in the English language?

This is the Zodiac speaking.