The death of a Peoria Heights man is being investigated as a homicide. The Peoria County Coroner's office says 81-year old Billy Price was pronounced dead at his Kelly Avenue house around 10:25 Friday night. Price died of multiple head injuries not believed to be accidental. Peoria Heights police have also issued a state-wide search for Price's vehicle which is missing. It's described as a 2005 brown Chevy Uplander van with the license plate 45223 F.