Deceased Cat Found (warning: graphic pictures)

A very cute grey and white cat was left on the sidewalk in front of our walkway (1102 18th, blue house on NE corner of 18th & Spring) last night/this morning.

It was not clear what killed him, there was no obvious blood or damage i could see. He was not wearing a collar, so I called animal control. I took a couple pictures, which are attached here.