The Evil Lives Here franchise has carved out a specific and unsettling niche in the true-crime landscape: telling stories of murder not from the outside looking in, but from the inside looking out. This week, the spin-off The Killer Speaks continues that tradition with an episode that dismantles a family’s core beliefs. “Grandpa’s an Assassin” airs Sunday at 9:00 PM ET on Investigation Discovery.
The story centers on Katie, a woman who, like many, viewed her grandfather, Buster, as a kind and central figure in their family. He was the anchor, the person around whom everything else revolved. This perception is abruptly destroyed when a murder occurs, and the investigation slowly uncovers a truth that seems impossible: Buster has a hidden history as a killer.
The episode methodically reconstructs the family’s reality before and after the revelation. It examines how a man with such a dark past could build a life as a seemingly loving patriarch, and the psychological toll it takes on those who learn the person they trusted most is capable of extreme violence.
Rather than focusing solely on the crime itself, the narrative gives weight to the emotional wreckage left behind. It’s a study in cognitive dissonance, forcing both the family and the audience to reconcile two completely opposing versions of one man. The series continues to find its footing by exploring the aftershocks of violence on those closest to the perpetrator.
Evil Lives Here: The Killer Speaks airs on Sunday, June 15 at 9:00 PM ET on Investigation Discovery.
