The Familiar Suicide and Final Wish of the N.Y.C. Gunman

Shane Tamura is not the first former football player to shoot himself in the chest and request that his brain be examined.

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Former Football Players With CTE Have Turned to Violence

The gunman in the Manhattan office shooting said in a note that he believed he had C.T.E., a degenerative disease linked by studies to repeated hits to the head.

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