NEW EPISODES

FRIDAY, NOV. 10

9:00-11:00 p.m. - 20/20

A beloved professor murdered - who ordered the hit? Inside the trial that ended this week.

'20/20' REPORTS ON THE CONSPIRACY BEHIND A LAW PROFESSOR'S GRUESOME MURDER AND THIS WEEK'S VERDICT

Program Features an Exclusive Interview With June Umchinda, the Defendant's Ex-Girlfriend, and Additional Interviews With Ruth and Phil Markel, Dan's Parents, and Michael Weinstein, a Former Family Friend

'20/20' Airs on Friday, Nov. 10 (9:00-11:00 p.m. EST), on ABC, Next Day on Hulu

On the morning of July 18, 2014, beloved FSU law professor and father of two young children, Dan Markel, pulled into his driveway and was approached by an unknown man who shot him twice in the head at point-blank range. Detectives found no clues about the perpetrators at the crime scene; they had only one lead to work with - a neighbor who gave a loose description of a Prius speeding out of Dan's driveway. Through a series of interviews and with aid from the FBI, police were able to uncover the travels of the Prius through a web of surveillance footage and toll booth data, which finally led to the arrest of the hitmen responsible for his death. But the question remained: Who hired the hitmen? With reporting from ABC News chief national affairs correspondent Matt Gutman, "20/20" documents how prosecutors used newly enhanced audio as the final link to charge Dan's ex-wife's brother, Charlie Adelson, with the crime.

The two-hour program features an exclusive interview with June Umchinda, Charlie Adelson's ex-girlfriend, and additional interviews with Ruth and Phil Markel, Dan's parents, and Michael Weinstein, a former family friend. "20/20" airs FRIDAY, NOV. 10 (9:00-11:00 p.m. EST), on ABC, next day on Hulu.

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. EST on ABC and are available to stream on ABC News digital platforms and Hulu.