Cops across the US urged to test cold case DNA against newly revealed yogurt shop murderer, who could be among the worst of all time

The yogurt shop murder in Dallas, Texas, 34 years ago was one of the most infamous cold cases in the United States until this week, when police announced it was solved. Here's how that happened and whether this case could have repercussions across the country. Also, Tara Servatius at WORD Radio discusses why she believes serial killing is 'obsolete' and new evidence revealed in the Betty Ann New case in Florida.