

2023–now · Oxygen True Crime · Running
Prosecuting Evil with Kelly Siegler is a new true-crime series examining the most harrowing homicides and toughest trials in Texas history — all told with Kelly Siegler's unique insight and unparalleled access. As Chief of Special Crimes in the busiest courthouse in the Lone Star state, Kelly Siegler battled to get killers into courtrooms and faced off with their formidable defense attorneys. Alongside the case investigators and victims' families, Kelly draws on her own extensive experience, the prowess of her fellow state prosecutors and the expertise of skillful defense attorneys to go beyond the headlines and reveal how perpetrators were brought to justice: Texas style.
Saturdays at 9:00 PM New York time
● Next episode
S03E07 · Blood Against Blood
2026-11-22
Last aired
S03E06 · Stand Your Ground
2026-11-15
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The Texas Seven
2026-10-03 · 120 min
Deadly Deception
2026-10-10 · 60 min
The Tourniquet Killer
2026-10-17 · 60 min
Triangle Of Guilt
2026-10-24 · 60 min
High-heel Homicide
2026-11-07 · 60 min
Stand Your Ground
2026-11-14 · 60 min
Blood Against Blood
2026-11-21 · 60 min
TBA
2026-11-28 · 60 min
Headlines can spoil the latest episode.
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This Week In Documentary
Nonfics · Nov 13, 2026
Latest episode · Stand Your Ground
Kelly Siegler Talks ‘Prosecuting Evil’ Season 3 & Gives Take on Nancy Guthrie Case
IMDb · Oct 5, 2026
'Prosecuting Evil's Kelly Siegler Gives Her Take on Nancy Guthrie Case
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‘Prosecuting Evil’ Returns With the Texas Seven and More of Texas’ Most Shocking Murder Cases
LAmag · Sep 22, 2026
Prosecuting Evil with Kelly Siegler Season 3 Teases Prison Break, “Untouchable” Serial Killer & More
Oxygen Official Site · Sep 3, 2026
Prosecuting Evil Season 3 Preview: Kelly Siegler’s New Cases
Showbiz Junkies · Sep 3, 2026
Prosecuting Evil With Kelly Siegler Season 2 Episode 7 Too Close to Home Airs March 8 2025 on Oxygen
IMDb · May 9, 2026