One of these horses is named Fabio, but the Denver Police Department ain't saying which. The department posted the photo above to Twitter, promising "ten cool points" to whomever guesses which horse in this photo is named "Fabio!"
They included the exclamation point inside the quote marks, so obviously it's part of the horse's name. The general consensus among respondents is that it's the right horse, but I'm not sure I've ever seen Fabio with bangs.
Anyway, no answer from DPD yet, so I'm just assuming the answer is "all of the above." Go weigh in on Twitter if you like.