kristin richardson, and carla prosecuted the case for king county. >> they were talking about divorceten to the point, and it was sort of assumed that they would be divorced, so that was pretty recent before this had happened, within the month before that that decision had been made. >> and then investigators discovered something else that troubled them. >> law enforcement learned that they had argued only the day before she'd gone missing. there was a big argument witnessed by other people at her place of work, so that, too, focused some attention on her estranged husband. >> the argument was over money, which was a frequent point of dispute for them. she had trouble. he had trouble. sort of meeting their bills. >> investigators'questions were mounting. they had a couple with money problems, a troubled marriage, a husband who didn't search for his wife and fought with her the day before she disappeared. it was time to sit down with greg johnson. how did they treat you in that first encounter, the police? >> yeah, they were like, you you did it, you know, accusing me of killing my wif