Season
- Season 0 1998-04-23
- Season 1 1988-01-19
- Season 2 1988-09-08
- Season 3 1990-01-04
- Season 4 1991-09-11
- Season 5 1992-09-16
- Season 6 1993-09-15
- Season 7 1994-09-21
- Season 8 1995-09-14
- Season 9 1996-09-12
- Season 10 1997-09-11
- Season 11 1998-04-29
- Season 12 1998-09-16
- Season 13 1999-09-22
- Season 14 2000-09-20
- Season 15 2001-09-27
- Season 16 2002-09-19
- Season 17 2003-09-26
- Season 18 2004-09-25
- Season 19 2005-09-23
- Season 20 2006-09-23
- Season 21 2007-09-28
- Season 22 2008-09-23
- Season 23 2009-09-18
- Season 24 2010-09-24
- Season 25 2011-09-23
- Season 26 2012-09-27
- Season 27 2013-09-27
- Season 28 2014-09-27
- Season 29 2015-09-12
- Season 30 2016-09-24
- Season 31 2017-09-30
- Season 32 2018-09-29
- Season 33 2019-09-14
- Season 34 2020-09-09
- Season 35 2021-09-18
- Season 36 2022-09-17
- Season 37 2023-09-16
- Season 38 2024-09-21
- Season 39 2025-09-27
Season 39 Episode
- Season 32 Murder on the Dark Web
- Season 32 Click for a Killer
- Season 32 Hollywood Horror Story
- Season 32 Dead Ringer
- Season 32 Cold-Blooded Killer
- Season 32 In the Name of Hate
- Season 32 What Happened in Apartment 4C?
- Season 32 The Mysterious Death of Casey Kasem
- Season 32 Defending DJ
- Season 32 FindJodi
- Season 32 Sugar Land: Life or Death
- Season 32 Jayme Closs Comes Home
- Season 32 Knock Knock
- Season 32 Was Kevin Cooper Framed? Part 1
- Season 32 Was Kevin Cooper Framed? Part 2
- Season 32 Live to Tell: Standoff at Trader Joe's
- Season 32 Portrait of a Killer
- Season 32 Fatal Crossing
- Season 32 Out of Reach
- Season 32 The Shape of a Killer
- Season 32 Karrie's Choice
- Season 32 Widow's War
- Season 32 Live to Tell: The Vendetta
- Season 32 In Jason's Name
- Season 32 A Death in Payson Canyon
- Season 32 The Case Against Enrico Forti
- Season 32 #FindPeterChadwick
- Season 32 What Happened to Rachael?
- Season 32 Jayme Closs: Hometown Hero
- Season 32 Peter Chadwick: Caught
48 Hours - Season 32 Episode 20 The Shape of a Killer
7.27 42 minutes 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.
