State police are investigating after a dog was stabbed and killed in Indiana County.The incident happened Sept. 29 at a home on Brady Drive in White Township.State police said Benjamin Miller, 26, was angry because of an altercation between his girlfriend and her stepfather. Investigators said Miller grabbed a kitchen knife and stabbed his dog Ray numerous times. The dog died after being taken to a veterinary hospital in Butler.Miller is facing several charges including aggravated cruelty to animals.He faces a preliminary hearing in January.