Bittrolff & Barthelemy
I recently signed up for a free trial at Intelligator.com. This site reveals email addresses and ip addresses of individuals in their database and alot of other personal info.
I ran a search on Melissa Barthelemy and it listed one ip address of 12.174.229.163
Using
http://www.iplocation.net/ the ip addrress 12.174.229.163 came back to a longitude and latitude of 40.3908 -74.1116 in Middletown, NJ.
I entered the coordinates into Google Earth and got an address of 19 Brandywine Way, Middletown, NJ.
There is an immediate family member of John Bittrolffs whose ip address comes back with an identical longitude and latitude (40.3908 -74.1116 ) 19 Brandywine Way, Middletown, NJ.
Either an immediate family member of John Bittrolff was at some point in time in the same house as Melissa Barthelemy was at; at some point in time, or John Bittrolff was in the same house as Melissa using an immediate family members computer.