More than a decade before he turned a Midtown NYC office building into a killing ground, Shane Tamura stood out as a rising star on a high school gridiron. Police believe the 27-year-old shooter’s obsession with CTE,

Shane Tamura — who fatally shot four people at a Midtown East office building — said in a suicide note he believed he suffered from CTE and requested his brain be studied.

The brain of depraved shooter Shane Tamura could possibly be tested for chronic traumatic encephalopathy during an examination of his body, Mayor Eric Adams said Tuesday.