Claremont, California — September 21, 2026 — At approximately 9:34 a.m., deputies assigned to the department’s Civil Management Bureau were carrying out an eviction at a vacant business when a patron from an adjacent gas station approached them. The patron reported that a man was going through the interior of the patron’s vehicle while armed with a knife. Deputies went into the gas station parking lot and were directed toward the man, later identified as Christopher Sumner. The department said Sumner charged toward deputies while holding a large knife, prompting the shooting. Claremont Fire Department personnel responded and pronounced Sumner dead at the scene. No deputies or other members of the public were injured. Investigators reported recovering two knives at the location.