. >> detective harriman confronted bill bruns with the luminol evidence. >> we asked bill, what would you think bill, who would you suspect to cause foul play to your wife. he said, i would suspect the husband. >> bill bruns continued to maintain his innocence. but when asked to take a lie detecter test, he refused. police were not sure what to do next. they had already excavated the basement floor once and had come up empty-handed. for the next nine months, the investigation stalled until police learned of a new forensic tool, one they hoped would lead them to pearl bruns' body. ♪ music ...the getaway vehicle! for all the confidence you need. td ameritrade. you got this. how can i ease this pain? (man) when i can't go, it's like rocks piling up. i wish i could find some relief. (announcer) ask your doctor about linzess-- a once-daily capsule for adults with ibs with constipation or chronic idiopathic constipation. linzess is thought to help calm pain-sensing nerves and accelerate bowel movements. it helps you proactively manage your symptoms. do not give linzess to children under 6,