UnitedHealthcare CEO Brian Thompson was fatally shot in a targeted attack in Manhattan. Police are investigating, focusing on words found on shell casings that suggest a motive related to the insurance industry's practices of denying claims. A person of interest has been identified through surveillance footage and photos, but remains at large. The investigation is ongoing, with authorities exploring various leads including fingerprints and a cell phone found near the scene. Despite the shooting, the Rockefeller Center Christmas tree lighting proceeded as planned with increased police presence.