Arnold Man Charged with Homicide and First-Degree Murder After Fatal Stabbing

Arnold, PA — Arnold Police and the Westmoreland County Detective Bureau responded to a deadly stabbing on Sunday, August 4. At approximately 5:38 p.m., Arnold Police were dispatched to the 100 block of Liberty Avenue following a report of a man stabbing a woman.

Brian Rebold, 38, called 911 to report the incident. Several neighbors witnessed the stabbing and provided statements to the responding officers. Upon arrival, officers found Diana Rebold, the suspect’s mother, lying unresponsive in the street with severe head wounds. Despite efforts to save her, she was pronounced dead at the scene.