Does he live alone?
Does he get regular visitors?
Does the house have a crawl space?
Does it have an attic?
He lives with my mom and his wife of 50 years. My brother and sister flew them out to Las Vegas last October to celebrate their 50th.
My brother has a summer home on the same block and my sister lives less than a mile away with her 2 daughters.
No crawl space and the attic was searched.