There is demented and then there is Jason Schiloh Brown of Reno, Nevada. Mr. Brown was found in his motel room to possess one decapitated dog and the severed heads of four other dogs in his small refrigerator.
And I am not sure about your feelings on the above photo, but I am pretty sure if evil might have it face it would look strangely like Mr. Brown. The fact that he is in a motel room leads me to believe he was transient in nature. The fact that he stored the heads of the animals he tortured leads me to believe he is certifiable.
It should come as not surprise that while Mr Brown is awaiting sentencing on October 1st, he is being kept in protective custody, as the other inmates are a little sensitive to how animals are treated.