of this case, you will be firmly convinced that it was brett parker who not only had the motive, butrker, and then bryan listen capnerhurst. >> prosecutors wanted the jury to know that the parker marriage wasn't what it seemed. brett had strayed. once with an out of town woman and several times with a local bank teller. lindsay mullins testified that they met, they texted, and that he shared some confidences about his marriage. >> he said that he slept upstairs and she slept downstairs. >> but the parkers had more problems than just brett's affairs. they called ben staples to the sand, a parker family friend. >> what did you know about the marriage? >> well, as the years went by, she was unhappy. she had conversations, we had conversations. brett did not believe in god and going to church. that was important to her. >> to them, that revealed another bit of evidence about the parker's shaky marriage. this one a bombshell. >> did your relationship become more intimate. >> yes. >> at approximately how long ago was that. >> about three years ago. >> and did that end? >> it did. it did no