I doubt there's any relation to the perp.
I have a rather odd last name.
For over 30 years my name was the only one listed in the local phone book.
I had always made it a habit to check that out whenever the new phone book arrived.
One year a new name was listed with mine!
So I called the number and told them who I was and we discussed our heritage and where our people were primarily from and there was no intersection, so no relations!.............