killed her mother. so after his conviction, she cemented their common-law relationship by formally marrying him in a prison ceremony. >> i don't know. i've tried to understand that before and all i can make of it is domestic violence in its severest form. the brainwashing, the abuse that just makes that person just not even think for themselves because it's so plain to see. you know. >> two murders, seemingly unrelated, but unmistakably connected by a series of microscopic clues. >> detectives all over this country are solving murder cases that are 20 or 30 or 40 years old based on science that didn't exist seven or eight years ago. so my expectation is that gary ackley, one, was not a very intelligent fellow and two, there was not this blitz of information from the media about