david duyst told police he and sandy were having marital problems and no longer slept together. ndy slept in the master bedroom, david slept on the sofa in the family room. >> he told me that he had heard a shot and responded to the bedroom where his wife was asleep and found her. he took the gun out of her hand, laid it on the bed, ran back out of the room and called 911. >> the children were in their bedrooms. they said they heard their father downstairs. >> they can hear this movement immediately after hearing the noises or shots. they can hear his movement from the den area through the other three rooms, opening the door to the bedroom and going in. >> this corroborated david's story, but just to be sure, police confiscated david's clothing. at that point, they did make a visual inspection of the shirt and the pants. and their report indicated that it was negative for blood staining. >> to make certain nothing was left undone, police asked david to take a lie detector test. he passed. >> we didn't have any reason to dispute his story. and quite frankly, given his background,

david duyst and sandy bose met in high school and fell in love.t to the same college, got married after graduation and started a family. >> the duysts were church-going people, pretty conservative and we