ABC News Studios' timely new primetime special "Manhunt: Luigi Mangione and the CEO Murder – A Special Edition of 20/20" airs Thursday, Dec. 19 (10:01-11:00 p.m. EST), on ABC, streaming next day on Hulu. The one-hour film takes a deep dive into a story that riveted the nation, providing a minute-by-minute investigation of the cold-blooded execution of United Healthcare CEO Brian Thompson and the shocking social media backlash that turned the alleged murderer into a folk hero for some. The special also reveals new details about the hunt for the suspect, examines what may have driven alleged killer Luigi Mangione to murder, and profiles new reporting on the writings found in Mangione's backpack, what police are calling a handwritten confession criticizing the healthcare system, and the three ominous words written on the shell casings.

The special includes interviews with a friend of the suspect; Brad Garrett, a former FBI profiler and ABC News contributor; Aaron Katersky, ABC News senior investigative correspondent; Brian Buckmire, ABC News legal contributor and defense attorney; Josh Margolin, ABC News chief investigative reporter; and Josh Einiger, WABC Eyewitness News reporter.

"Manhunt: Luigi Mangione and the CEO Murder – A Special Edition of 20/20" is produced by ABC News Studios. Muriel Pearson serves as executive producer, and David Sloan is senior executive producer. Janice Johnston is the executive producer of "20/20."

About ABC News Studios: Winner of four News and Documentary Emmy Awards, ABC News Studios is inspired by ABC News' trusted reporting and is an award-winning, premium news and documentary original production house and commissioning partner of series and specials. ABC News Studios champions untold and authentic stories driving the cultural zeitgeist spanning true-crime, investigations, pop culture and news-adjacent stories. ABC News Studios' original titles include critically acclaimed documentaries "Pretty Baby: Brooke Shields," "BRATS," "Sound of the Police," "The Lady Bird Diaries," "Aftershock," and "Patrice: The Movie," and popular docu-series and documentaries, including "After Baywatch: Moment in the Sun," "Betrayal: A Father's Secret," "Killing County," "Wild Crime," "Mormon No More," "The Randall Scandal: Love, Loathing, and Vanderpump" and "Jelly Roll: Save Me."

About "20/20": ABC News' "20/20" is an award-winning primetime program anchored by David Muir and Deborah Roberts. A proven leader as a long-form newsmagazine for over 45 years, "20/20" features unforgettable, character-driven true-crime mysteries, exclusive newsmaker interviews, hard-hitting investigative reports and in-depth coverage of high-profile stories. Janice Johnston is the executive producer. The two-hour "20/20" events air Fridays from 9:01-11:00 p.m. ET on ABC and are available to stream on ABC News digital platforms and Hulu.