nothing had been stolen. the victims' money and credit cards were untouched, but in a back bedroom something was missing. >> the computer tower itself was gone, so that alarmed me right off the bat. >> why would a killer steal only the computer? >> to me that clearly showed very quickly that there's a computer angle on this crime. there's an internet angle on this crime. >> on the night of the murders, investigators discovered fred and rebecca were seen together in a bar called arnie's, a regular hangout of theirs. witnesses say they were with a man no one at the bar had seen before. >> they described him as a really tall guy. he was well over 6'4", 6'5". >> she's introducing him that night that this is my new internet boyfriend. >> witnesses say fred looked tired and disinterested. >> it seemed pretty apparent to the patrons in the bar that fred wasn't very enamored with the date rebecca was bringing. >> rebecca didn't introduce the