Oxygen True Crime HD Nathan and Denise Leuthold build their family on faith, but suddenly one of them dies, and the other is under suspicion; it's a story that stays with Andrea Canning, both because of what happened and when it happened: Valentine's Day. 2026-08-06 A new father is found dead on the side of a road, and weeks later a young woman is stabbed to death in broad daylight; Josh Mankiewicz retraces lives that swerved out of control and a twisted murder plot that went off the rails. 2026-08-06 When a firefighter is gunned down in his own home, the investigation unravels a web of secrets, a love triangle, and chilling surveillance footage; Dennis Murphy revisits the stunning evidence that helped expose the killer. 2026-08-07