I normally don't scare that easily, but I would change it for two reasons..
#1 - This murderer, who has been declared insane - and anyone who has ever been associated with him - can get your address by doing a reverse look-up of the phone number - even though you don't live in the house he lived in.. That's the part that is unsettling to me.. Is there any real danger? Who knows - but it's not a chance I would be willing to take..
#
see, that is exactly what my gut is saying! my dh thinks I am over reacting. honestly I don't think it would be too big a pita to change. need to think a bit more on this before I do it.