India, July 29 -- NYC shooting investigators reportedly discovered a note from suspect Shane Tamura's pocket mentioning that he developed chronic traumatic encephalopathy (CTE), a condition associated with head trauma.

In the note, he allegedly complained about the NFL, which has its headquarters in the tower he targeted, and requested for his brain to be examined.

Tamura allegedly blamed the NFL for his mental health issues, according to the several-page memo that was found after his death.

"Terry Long football gave me CTE and it caused me to drink a gallon of antifreeze," the note read, as per CNN. "You can't go against the NFL, they'll squash you."

Terry Long, a former lineman for the Pittsburgh Steelers, was diagnosed with CTE. In...