A Promise to Helene
When college student Helene Pruszynski is found murdered, her case remains cold for nearly 40 years until a new detective uses an innovative method to catch the killer. Josh Mankiewicz reports.
Aired: Oct 16, 2020 Genre: Crime DocumentaryCasts: Lester HoltDuration: 43m Rating: 0 Country: United States of America Production: NBC News, Peacock Productions
Seasons
Season 1Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9Season 10Season 11Season 12Season 13Season 14Season 15Season 16Season 17Season 18Season 19Season 20Season 21Season 22Season 23Season 24Season 25Season 26Season 27Season 28Season 29Season 30Season 31Season 32Season 33Season 34Season 35
Episodes
01: Trouble at the 7-11 Ranch02: Left For Dead03: Tallahassee Trap04: A Killer Role05: Lone Star Obsession - Redo of06: The Dead of Night07: What Happened to Don Lewis08: The Client: A New Look09: A Promise to Helene10: Even the Devil Went to Church11: Return to Shalimar Way12: Hope Whispers13: 10 Minutes to Sunset14: Voices for Vanessa15: Point Blank16: Race for a Vaccine17: Far from Spider Lake18: Into the Night - Follow-Up of19: The Eastlake Conspiracy20: The Life and Death of Princess Diana21: The Eastlake Conspiracy22: Journey for Justice23: Open Water24: The Grudge25: Night of the Summer Solstice26: Lauren's Promise27: The Woman at the Bar28: Shannon's Story29: Death of a Hometown Hero30: Broken Circle31: The Monster at Large32: Collateral Damage33: Return to the Landing34: The Life She Wanted35: The Woman with No Name36: The Waiting Car37: Mommy Doomsday38: Sex, Lies, & Murder39: The Phone Call40: The Necklace41: Killer Role42: Window of Opportunity43: The Fight for America's Soul44: A Wanted Man45: Secrets by the Bay46: Breakout47: The Story of Somebody48: House of Horrors49: Twisted Loyalty50: The Investigation51: The Secrets of Spirit Lake52: Heroes: The Story of Flight 9353: What Happened to Amy?
