i asked jermeir. i said, "did you make that call?" and jermeir said, "yes, i did.ake that call? "i wanted to know where she was. >> reporter: so he suspected >> so he told me that he did think she was capable of doing it he tells me that he did make that call to make sure she was at work. this is before we said anything about a burgundy suv but there was nothing in the past where she ever indicated that she would do harm to denita that doesn't add up. >> reporter: why would jermeir need to know shannon's whereabouts just after he found out denita was killed? investigators considered a variety of scenarios but whatever it was, jermeir wasn't volunteering much >> sometimes when you tell people, you know, a lie of omission, that's still a lie, some people, you have to ask the correct question to get the answer you're looking for. if you don't ask it, you're not getting it >> reporter: investigators had two wildly different stories he said, she said. who was telling the truth and who wasn't >> it was clear we were down to two people it was one of these two people and t