King County Killers | Washington's Darkest Crimes

King County Killers: 00:00 - Intro 02:09 - The Mahoney Trunk Murder 06:57 - Washington’s First Known Serial Killer 11:30 - George Russell's Reign of Terror 16:00 - The Carnation Murders 21:27 - The Green River Killer Become an NC Patreon member!:   / northerncrimes   Subscribe to our sister channel, Southern Crimes:    / @southerncrimesyt   King County Killers is a true crime documentary exploring some of the most disturbing murder cases in Washington State history. Spanning decades and generations, the film examines how violence unfolded across highways, suburbs, and forested backroads—and how investigators worked to uncover the truth. From calculated killings driven by greed to predators who exploited trust and vanished into the landscape, these cases reveal patterns that continue to haunt the Pacific Northwest. Some were solved. Others remain open. And in King County, the questions never fully disappear. #washington #truecrimecommunity #coldcase