kevin jones was on trial for the murder of his girlfriend, nona dirksmeyer. prosecutors painted kevin as a jealous boyfriend whose bloody palm print found at the scene was evidence he committed the crime. the defense countered that kevin left the print while trying to save nona's life. it was time for the jury to decide the young man's fate. here again is keith morrison with "what happened to the beauty queen?" >> kevin jones sat in the courtroom, watched the fight for his life swirl around him, and felt in that uncomfortable chair the withering stares of the jury. >> they can all look at you, and if you do one thing wrong, that they deem is wrong, that might sway them the opposite way. >> one facial expression. >> one click of a pen. one bite off of your fingernail. you never know how people are going to take things that you do. >> he had every reason to worry. later the jurors would recall how the images of this crime haunted them. >> blood all over him in the pictures. >> the palm print in her blood. >> but to the jurors the evidence or the lack of it looke

incidents on the same night, unrelated to nona dirksmeyer. he pleaded not guilty. the state has not said whether it will file charges against dunn for a third time in the nona dirksmeyer killing. >> that's all for this edition of "dateline." i'm craig melvin. thank you for watching. >>> i'm craig melvin. >> and i'm natalie morales. >> and this is "dateline." >> it happens on tv. it doesn't happen to your family. to your brother. but it does. >> no one thought it could happen to him. he was a tough guy, prepared for anything. >> he always would say if anyone tries to break in here i'll kill them. >> instead, he was killed. stabbed in his own home. >> are you sure your dad's cold to the touch? >> his son and daughter-in-law stumbled into a terrifying scene. >> that's when i saw the gun. >> they said "we're going to have to kill you now." >> a strange story that only got stranger. >> they had gloves on. >> and they had blue fuzzy gloves. >> something isn't right here. >> could he have killed his own father? what really happened in that house? >> i did not do this. >>