Transcript for Cal Harris' 3rd Murder Trial Ends in Mistrial
Our woman son the case. First, the husband put on trial three times for allegedly killing his wife. He's now headed for trial number four. With no body and no murder weapon. A jury has declared a mistrial for Cal Harris. Prosecutors, they're not giving up. Matt Gutman has the latest. Reporter: The jury hopelessly deadlocked. Cal Harris, flanked by his kids, will face a fourth trial for the murder of his wife. I had hoped my children and I would finally be free to live our lives without these false allegations. Reporter: Since Michelle Harris mysteriously disappeared in 2001 he's insisted he had nothing to do with it. Did you kill Michelle. Absolutely not. Absolutely not. The fact that I'm sitting here having to go through the is a horror show. Reporter: One set for another encore in August. Just before the third trial, I asked Harris what would be different. Two juries have found you guilty. Two juries that haven't gotten all the information. Reporter: Now the third jury informing the judge they couldn't decide. They September us three deadlocked notes over the course of nine case. We knew there was trouble. It's almost unheard of that someone is tried four times for the same crime. Reporter: Prous cuters say he bludgeoned his wife to death but no body or weapon was found. A new surprise witness came forward after the first trial with new information, saying Michelle was seen with a didn't man the day she disappeared. A judge overturned the conviction. In his second trial in 2009, he was convicted again. And shockingly, that conviction was overturned by an appeals court. Now, as he heads to his fourth trial, Harris saying the real killer is still out there. We got closer to justice. But we're not there yet. We'll continue to fight and pursue the truth about what happened to Michelle. Reporter: For "Good morning America," Matt Gutman, ABC news, Los Angeles. His four children continue to stand by him zplp they do.
This transcript has been automatically generated and may not be 100% accurate.