attorney general and i got a phone call, and they -- they said they were looking into it. >> ohio attorney general mike dewine had recently started a cold case unit, and in september 2012, three years after ray kotomski's death, dewine's office reopened the case with teresa the prime suspect. >> i didn't want her to get away with murder. my prosecutors and detectives didn't want to see that happen either. >> those investigators were glad to be back in business. there were reasons they liked teresa for ray's murder. one had to do with a story they heard about her first marriage. >> her previous husband, roy lovin, told us that teresa had put rat poison in his mashed poe potatoes. >> and he knew that how? >> roy said he took two bites,