Los Angeles County Sheriff’s Department deputies, Los Angeles County Fire Department personnel, and emergency medical service units responded to 911 dispatch calls reporting a severe two-vehicle crash at the intersection of Amar Road and Millbury Avenue at approximately 5:48 p.m. on Monday, October 19, 2026. Upon arrival, first responders located a white Mercedes-Benz and a black BMW that had collided within the intersection. Paramedics provided emergency medical treatment at the scene to 83-year-old Teresa Castellanos, who sustained critical impact injuries. Castellanos was transported via ground ambulance to a nearby hospital, where she succumbed to her injuries during treatment and was pronounced deceased.
Law Enforcement Investigation and Status
Los Angeles County Sheriff’s Department Industry Station traffic investigators secured the intersection for several hours to conduct physical scene reconstruction, map vehicle damage, and collect physical evidence. Authorities maintain an active, ongoing investigation into the specific traffic control factors, speeds, or right-of-way circumstances that led to the collision. Official post-mortem examinations and formal cause-of-death determinations are being completed under the jurisdiction of the Los Angeles County Department of Medical Examiner.
Tributes and Memorial Notices
News of Castellanos’s passing brought deep heartbreak to her family, friends, and community members throughout La Puente and the San Gabriel Valley. Loved ones remembered the 83-year-old resident for her long life, personal connections, and lasting presence in the lives of those around her. Official details regarding public visitation hours, memorial services, and formal funeral arrangements will be announced by authorized family representatives once plans are finalized.
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