What to know about CTE, the degenerative brain disease named in NYC shooting suspect's note

The gunman who opened fire in midtown Manhattan on Monday, killing four people before turning the gun on himself, left a note mentioning “CTE” several times, officials familiar with the investigation told NBC News.

Jul 30, 2025 - 00:04
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What to know about CTE, the degenerative brain disease named in NYC shooting suspect's note
The gunman who opened fire in midtown Manhattan on Monday, killing four people before turning the gun on himself, left a note mentioning “CTE” several times, officials familiar with the investigation told NBC News.

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