is there a risk for these women getting involved with ryan widmer? going through. he was never been able to mourn properly for her because you cannot do that when you are on charge for murder. they contacted him, and it was companionship. >> it was time to wrap up trial number three. the prosecutor saying that it was a sudden violent murder. >> everybody who's been in a relationship knows that sometimes things go off, they snap. for no good reason. i think something like that happened, at some point brian saw that the perfect marriage was falling apart and that is what happened here. >> the defense arguing a medically undetermined death by natural causes. >> it's probably gonna bother me for the rest of my life. what happened with sara. we will never know. >> sara had drowned, but how? a third jury retired for deliberation. coming up. >> he was telling me how much he loved sarah and he had never loved another woman as much as he loved her. i think i started crying because i felt so bad for him. >> another stunner. a new sarah enters brian's life. >>