INVESTIGATION DISCOVERY EXPLORES SALACIOUS SECRETS AND SUSPICIOUS DEATH OF KATHLEEN PETERSON IN ALL-NEW LIMITED SERIES, "AN AMERICAN MURDER MYSTERY: THE STAIRCASE"

-- Latest Installment of Breakout Hit AMERICAN MURDER MYSTERY Franchise to Premiere Sunday, April 8 at 10/9c, Only on ID --

(Silver Spring, Md.) - Michael Peterson appears to have it all - a doting wife, a loving family and a successful literary career - but, that all changes on December 9, 2001, when Michael's wife, Kathleen, is found dead in a pool of blood at the bottom of a staircase in their home in Durham, North Carolina. Michael claims it was a tragic accident. Investigators, however, fear something far more sinister is at play and direct their attention to him. Did Michael Peterson murder his wife? Investigation Discovery (ID) delves into one of the most fascinating cases in criminal history in AN AMERICAN MURDER MYSTERY: THE STAIRCASE. Premiering Sunday, April 8 at 10/9c, the three-part special event provides a unique and comprehensive look at the death of Kathleen Peterson, exploring the shocking theories, critical evidence and surprising secrets that thrust this case into the national spotlight.

"The death of Kathleen Peterson is one of the most confounding cases in history," said Henry Schleiff, Group President of Investigation Discovery, American Heroes Channel and Destination America. "There are so many pieces to this puzzle - from Michael's salacious secrets to investigator misconduct to the odd owl theory - so, we are eager to bring our viewers the first complete look at this fascinating crime and subsequent trial."

AN AMERICAN MURDER MYSTERY: THE STAIRCASE is the unabridged story of the suspicious death of Kathleen Peterson and the trial of her husband, Michael, for her murder. The three-night event features all-new and exclusive interviews with key players in the case, most notably Candace Zamperini, Kathleen's sister and Brent Wolgamott, a male escort whom Michael was emailing with at the time of the crime, as well as legal experts, jurors and reporters who covered the case from the very beginning.

Created by the team behind ID's record-breaking AMERICAN MURDER MYSTERY franchise, AN AMERICAN MURDER MYSTERY: THE STAIRCASE is produced for ID by American Media, Inc. and Jupiter Entertainment with Allison Wallach, Tim McConville, Matt Sprouse, David Pecker, Patrick Reardon and Dylan Howard as executive producers. For ID, Pamela Deutsch is senior executive producer, Sara Kozak is senior vice president of production, Kevin Bennett is general manager, and Henry Schleiff is Group President of Investigation Discovery, American Heroes Channel and Destination America.

About Investigation Discovery

Investigation Discovery (ID) is the leading crime and justice network on television, delivering the highest-quality programming to approximately 85 million U.S. households. From harrowing crimes to in-depth investigations and heart-breaking mysteries behind these "real people, real stories", the always revealing network challenges our understanding of culture, society and the human condition. The #1 network for women in all of cable, ID's programming is available in both high definition (HD) and standard definition (SD), as well as anytime and anywhere through the network's TV Everywhere offering, IDGo. For exclusive web content and bonus material, fans can follow ID on Twitter, Instagram and Facebook or check out the network's true crime blog, CrimeFeed.

Investigation Discovery is part of Discovery, Inc. (Nasdaq: DISCA, DISCB, DISCK), the world's #1 pay-TV programmer reaching 3 billion cumulative subscribers in 220 countries and territories to satisfy curiosity and captivate viewers with a portfolio of premium nonfiction content brands. For additional information about ID, please visit InvestigationDiscovery.com