UPDATES

FRIDAY, SEPT. 4

9:00-10:00 p.m. EDT - 20/20: "The Trial of Lindsay Clancy - Special Edition of 20/20"

Moments after the judge declared a mistrial in the case of Lindsay Clancy, and the defense filed an emergency stay, "20/20" goes inside the case of the Massachusetts mother accused of murdering her three children, and shares new details.

10:00-11:00 p.m. EDT - 20/20: "The Hungryland Homicide"

A '20/20 Britain's Most Notorious Crime Investigation' reports on the murder that linked the British Royal Family to scandal when the Duchess of York's former dresser murdered her boyfriend and went on the run.

ALL-NEW '20/20'

FOLLOWING TODAY'S MISTRIAL IN THE CASE OF LINDSAY CLANCY, '20/20' IS INSIDE THE COURTROOM AND EXAMINES THE PIVOTAL MOMENTS THAT ALLEGEDLY LED A MOTHER TO MURDER, SPARKING A NATIONAL DEBATE OVER POSTPARTUM MENTAL ILLNESS

'The Trial of Lindsay Clancy - Special Edition of '20/20' - Airs Friday, Sept. 4, on ABC and Streams Next Day and Disney+ and Hulu

At 10:00 p.m., a Report on One of the British Royal Family's Most Notorious Scandals in 'Jane Andrews: The Duchess and The Killer'

Just moments after the judge declared a mistrial and the defense filed for an emergency stay in the case of Lindsay Clancy - the Massachusetts mother accused of murdering her three young children - "20/20" reports on the case that shocked the nation, from the tragic sequence of events leading up to the killings to the competing arguments over mental illness, intent and criminal accountability. Prosecutors argue that Clancy is a calculated killer, while the defense contends her actions were the result of severe postpartum psychosis. The two sides have presented sharply contrasting accounts of what happened and why, fueling a heated national debate about postpartum mental illness and its effect on her judgment and behavior. Tonight's episode breaks down the pivotal moments of the trial, including the conflicting expert testimony over whether Clancy fully understood the consequences of her actions. "The Trial of Lindsay Clancy - Special Edition of "20/20" - airs FRIDAY, SEPT. 4 (9:00-10:00 p.m. EDT), on ABC and streaming next day on Disney+ and Hulu.

"The Trial of Lindsay Clancy - Special Edition of 20/20" is produced by "20/20" and "IMPACT x Nightline." Janice Johnston is the executive producer of "20/20." Eman Varoqua is the executive producer of "Nightline" and "IMPACT x Nightline."

Then, "20/20 Britain's Most Notorious Crime Investigations" reports on the murder that linked the British royal family to scandal when the Duchess of York's former dresser brutally murders her boyfriend, leaves behind a cryptic note and goes on the run. A nationwide manhunt ensues as detectives piece together what motivated this brutal killing. When police track her down, she makes explosive allegations of abuse in her relationship. The authorities must delve into the couple's private secrets to determine if she murdered in cold blood. "Jane Andrews: The Duchess and the Killer" airs (10:00-11:00 p.m. EDT) on ABC and is currently streaming on Disney+ and Hulu.

"20/20 Britain's Most Notorious Crime Investigations" is produced by Candle True Stories and ABC News Studios. The series is executive produced by James Goldston and Alicia Kerr, and Ralph Perring serves as co-executive producer. David Sloan is the senior executive producer, and Eamon McNiff is executive producer for ABC News Studios. The Hulu Original series was commissioned by Sean Doyle, Vice President, Unscripted, Disney+ EMEA.

ABC News' "20/20" is the No. 1 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 9-11 p.m. ET on ABC and are available to stream on ABC News digital platforms, Disney+ and Hulu.

-- ABC --