griffith what she would have needed in a divorce and been entitled to. >> reporter: keith's daughter-in-law ali griffith listened to the entirety of the prosecution's case. all she heard were theories. >> they spun a story, and they told a story how they wanted it to go. and they had facts that supported their story, but did not prove it. >> reporter: and that's what keith's defense attorney mark bryant hammered home for the jury. >> reporter: what's no evidence mean? >> they didn't have dna, they didn't have any kinda forensics, they didn't have a confession. they had nothing! they had circumstantial evidence. >> reporter: in their haste to arrest keith, the defense argued, the police had gotten it wildly wrong. yes, he conceded, keith wasn't the husband of the year. but, he said, deanna's story that keith was pursuing her for a long term commitment was nonsense. rather -- >> what he wanted was a port in every storm. >> reporter: as for the life insurance, $250,000 was far from