collins out of the truck on the roadside. >> reporter: but what about the third murdered woman, teri lynn matthewsout to other bolin family members, including oscar's half-brother, phillip. >> when we met with phillip bolin, he told us of the night of teri's murder. when he walked out to where oscar was, he saw a body wrapped in a sheet, and at that point, oscar bolin struck her several times in the head. >> reporter: the noose seems to be tightening around one person, but its fibers found at all three crime scenes that ultimately tie oscar bolin to all three victims. >> we actually took evidence that we recovered at the crime scene. different samples. and we sent those to the fbi laboratory in washington, d.c. and that's where the fbi laboratory was able to link forensically those cases. we've got a hair match from his head to the stephanie collins case that matches his head hair. the fbi laboratory also found wool fiber that connected the teri lynn matthews case, the stephanie collins case and the natalie blanche holley homicide case also. all three cases. >> reporter: finally police believe the