NYC gunman Shane Tamura’s brain will be studied after shooter blamed CTE for massacre

Manhattan mass shooter Shane Tamura’s brain will be examined as part of his autopsy after the crazed gunman blamed an apparent football-related head injury for the deadly attack, officials confirmed.

The New York City Medical Examiner determined the 27-year-old gunman died by suicide after his heinous rampage inside the Midtown office building, which is home to the NFL’s headquarters, on Monday night.

Tamura’s official cause of death was a self-inflicted gunshot wound to his torso, according to the medical examiner.

No ruling has been made yet on whether Tamura was suffering from the disease chronic traumatic encephalopathy (CTE), which he claimed to have had.

The medical examiner said a neuropathology expert was in the process of carrying out “additional testing” on the gunman’s brain for the “complete autopsy record.”

CTE — a degenerative brain disease that’s caused by concussions and repeated blows to the head — can only be diagnosed by examining a brain after death.

Meanwhile, the medical examiner also determined the cause of death for each of the shooter’s four victims

NYPD Officer Didarul Islam, Blackstone exec Wesley LePatner, security guard Aland Etienne and Rudin employee Julia Hyman all died from gunshot wounds to their torsos, the office said.