>> sirius underwood.our he was in contact with the most. >> what were you thinking? >> when we first talked to josh, he never mentioned sirius underwood. why would they be lying to us about that? >> why, indeed. the story told by the phones, that concealed relationship, fed a growing theory of the crime. that they were looking at a long distance killing between ohio and alaska. if that was their case, then technology was going to be as valuable to them as dna or bloody fingerprints. the first big question, did the killer, assuming he was a man, have a phone on him when he did the shooting? and, what tower near the murder scene had the phone pinned off of? >> we had tons of -- and i'm not exaggerating, thousands upon thousands upon thousands of phone calls. >> and that electronic haystack, a sharp eyed cop noticed a call around the time they believe that brandy was killed. it was made from a number with a 310 area code. normally, that southern california. the county lawmen traced that 310 number back to an