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.
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48 Hours

The Shape of a Killer

“48 Hours” uncovers the narrative behind crime and justice cases that have left a lasting mark on society. Award-winning CBS News correspondents thoughtfully examine the complexities of each crime by transporting you to the heart of the investigation through key evidence and gripping interviews with critical figures from the case. The unmatched reporting has made a tangible difference in countless lives, leading to the exoneration of wrongly convicted individuals and the reopening — and resolution — of previously closed cold cases.Listen to a new “48 Hours” episode every Monday and then go deeper into the case on Tuesdays with the immersive “Post Mortem” series — producers...