He was pretty happy about offing both of his parents. He had both of Terri's cats euthanized, not because there was anything wrong with them, but because there was something wrong with him. Jodi's mother died mysteriously in Mikey's home. Since he works for the sheriff, it may never be properly investigated. I wonder how many other deaths are connected to him.
He had them killed for spite. And then he lied about it in court. It is all in the record.