Season
- Season 1 2017-07-21
- Season 2 2018-02-16
- Season 3 2018-06-23
- Season 4 2018-07-13
- Season 5 2018-10-01
- Season 6 2019-01-05
- Season 7 2019-05-05
- Season 8 2019-10-18
- Season 9 2020-04-03
- Season 10 2021-03-01
- Season 11 2022-10-04
- Season 12 2024-01-10
- Season 13 2024-06-05
- Season 14 2024-11-06
- Season 15 2025-06-04
Season 15 Episode
- Season 10 The Devil in Disguise
- Season 10 While He Was Sleeping
- Season 10 The Root of All Evil
- Season 10 Deadly Betrayal
- Season 10 Lethal Weapon
- Season 10 Secret Lives
- Season 10 What Lies Beneath
- Season 10 Fatal Attraction
- Season 10 Shining Star
- Season 10 Queen of the County
- Season 10 After Midnight
- Season 10 Miami Heat
- Season 10 Someone Was Out There
- Season 10 Secrets at Sunshine Motel
- Season 10 Indiscretion
- Season 10 The Evil to Come
- Season 10 True Lies
- Season 10 Finding Savanna
- Season 10 Mystery on Sunrise Drive
- Season 10 The Wire
- Season 10 The Long Road
- Season 10 Jagged
- Season 10 Stone-Cold
- Season 10 The Early Shift
- Season 10 Prairie Confidential
- Season 10 Noises in the Night
- Season 10 Before the Storm
- Season 10 The Alibi
- Season 10 Suspicion in Silver City
- Season 10 After the Storm
- Season 10 The Secrets of Cottonwood Creek
- Season 10 Unthinkable: The Menendez Murders
- Season 10 The Match
- Season 10 Finding Sarah Goode
- Season 10 The Last Day
- Season 10 The Valentine's Day Mystery
- Season 10 Mean Girls
- Season 10 Bitter Pill
- Season 10 Taken
- Season 10 The Night Brianna Vanished
- Season 10 In Plain Sight
- Season 10 The Prussian Blue Mystery
- Season 10 11 Minutes
- Season 10 She Didn't Come Home
- Season 10 Facing the Music
- Season 10 Before Midnight
- Season 10 The Secret Keepers
- Season 10 Evil Was Watching
- Season 10 The Target
- Season 10 The Disappearance of Laci Peterson
- Season 10 Secrets in the Smoky Mountains
- Season 10 Mystery in Big Sky Country
- Season 10 Before Dawn
- Season 10 Scorned
- Season 10 The Halloween Party
- Season 10 The Mystery of Effingham County
- Season 10 Something Sweet
- Season 10 A Perfect Spot
- Season 10 Friends Until Death
- Season 10 One Small Dose
- Season 10 Deadly Devotion
- Season 10 The House on Badger Lane
- Season 10 Without a Trace
- Season 10 A Place on the Sand
- Season 10 The Night Before Halloween
- Season 10 The Mystery on Albion Road
- Season 10 As Darkness Fell
- Season 10 Haunting Images
- Season 10 The Beauty and the Beast Mystery
- Season 10 Deadly Exposure
- Season 10 Secrets of Lake Seminole
Dateline: Secrets Uncovered - Season 10 Episode 44 She Didn't Come Home
8.10 43 minutes Investigators didn’t know if Kathy Heckel was a missing person or murder victim. The case grew cold until, decades later, a new detective dusted off the old files. They couldn’t catch the elusive suspect then, but he hoped to solve the mystery now.
