nicole pietz, strangled to death.body left for a week beneath some blackberry bushes right near the airport. the killer unknown. her necklace still missing. her families deep sorrow, now hardened into resolve to get justice for her. >> find out who did it and punish him. punish him. >> captain jesse anderson, of the king county sheriff's office was the lead detective assigned to the murder case at the time. he set out to learn more about the victim. paying a visit to her husband, david pietz, at the condo he and nicki shared. >> how long have been married? >> almost four years. >> david agreed to be audiotaped and told detectives that nicki had struggled with chemical dependency in the past. he then revealed something disturbing. recently, nicki had again started taking prescription pills. >> is nicki still struggling? >> i thought she wasn't. but she hurt her back right before thanksgiving and she slipped a disc. >> because of a severe, painful back injury, david explained, nicki had reluctantly agreed to let her doc