He may not have tortured and killed animals but he did like to examine their dead bodies. He had a fascination with dead animal bones and dead animals. He stated once that he liked the sound of the bones clicking together in a bucket. He liked to dissect dead animals and bleach their bones. There is no evidence that he actually killed the animals that he sickeningly “played” with. Once upon finding a dead dog, he impaled it’s head upon a stick. This fascination seems to have started with his father finding a dead animal under the family home’s porch. This fascination with death and remains appears to have stayed with him until his death."
http://en.wikipedia.org/wiki/Jeffrey_Dahmer