video loading . . . You Just Watched: Season 1, Episode 01 The Killing of Ken Rex McElroy replay Watch Next Season 1, Season 02 Season 1 When Ken Rex's widow Trena comes forward with eyewitness testimony, investigators derail her at every turn. Rex's background and controversial relationships come to light, and a brewing federal investigation threatens Skidmore's secret. Advertisement No One Saw A Thing S1 Ep.1 The Killing of Ken Rex McElroy Ken Rex McElroy murdered.