Podcast:48 Hours Published On: Sun Dec 22 2019 Description: Three murders in Austin, Texas, and little evidence to go on. Did a man testing a thermal imaging camera inadvertently capture the image of one of the killers? "48 Hours" correspondent Maureen Maher investigates. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices