最新报道:Shane Tamura's mother alerted police in 2022 about his concussion-related depression, chronic migraines, substance use, and gun possession. During the 2025 Manhattan shooting, Tamura blamed the NFL for concealing brain injury risks before killing four people and himself. Authorities disclosed his prior mental health episodes (2022-2024), trespassing arrests, and noted a new law allowing firearm seizure during psychiatric holds. The incident fuels discussions on mental health, traumatic brain injuries, and public safety, though no direct connection was established between his 2022 concussion and the 2025 attack. (150 words)