I did a bit more looking at the record (I use Lexis for work stuff and it gives me access to public records). It shows him as being alive and living at the address, but doing a search for the property shows it was sold in the last year and someone with a different name is the new owner. Lexis is notorious for providing half-assed public records info, so my guess is that the real estate records should be trusted and he's no longer at the address (or, perhaps, even alive). The death records, though, are usually pretty good and they don't show Mr. Merz as having passed.
