Framingham police said a man with dementia who was reported missing Sunday night has been found dead. Framingham police said the body of David W. Baldwin, 53, was located Monday. Police said Baldwin has early-onset dementia and disappeared near St. Andrews Church Sunday evening. Officers searched for him with police dogs and the state police air wing. Sadly, an officer found Baldwin's body behind a Union Ave. business about one-quarter mile from where he was reported missing. The cause of death has not yet been determined.