When did 48 Hours Season 32 Episode 20 air?
48 Hours Season 32 Episode 20 aired on March 16, 2019 at 10 PM ET.


This newsmagazine series investigates intriguing crime and justice cases that touch on all aspects of the human experience. Over its long run, the show has helped exonerate wrongly convicted people, driven the reopening — and resolution — of cold cases, and changed numerous lives. CBS News correspondents offer an in-depth look into each story, with the emphasis on solving the mystery at its heart.
After three murders with chillingly similar scenarios occurred in Austin, Texas, police began to wonder if they were chasing a serial killer. But whomever committed the crimes left no evidence, no DNA. Cops went into a frantic investigation. The hunt for clues changed when a man testing out a new thermal imaging scope recorded the nighttime movements of a stranger the night of the first murder. As "48 Hours" correspondent Maureen Maher reports, it was evidence cops never expected – and would help them break the case.
Direct answers for episode-level questions and details.
48 Hours Season 32 Episode 20 aired on March 16, 2019 at 10 PM ET.
This episode runs for approximately 43 minutes.
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