Prescott Valley Police are investigating the death of a man who was found un-responsive in his home on East Copper Hill Drive. Spokesman Jerry Risinger says officers responded to the house Wednesday afternoon. When officers arrived, they discovered a 33-year old male, located inside of a residence and found to be non-responsive. Central Arizona Fire and Medical Authority responded. The male was pronounced deceased on scene. Risinger says the case remains under investigation; it’ll be up the medical examiner’s office to determine the exact cause of death. He says illicit drugs may be a factor. A name was not released.