Shane Tamura, the 27-year-old gunman who fatally shot 36-year-old New York City police officer Didarul Islam and several others in a New York City skyscraper on Monday, was reportedly found dead with a note claiming that football had given him chronic traumatic encephalopathy, or CTE.
In it, he addressed former Pittsburgh Steelers player Terry Long, who was diagnosed with the neurodegenerative disease. Long drank a bottle of antifreeze to commit suicide in 2005, with doctors at the time attributing depression associated with the condition as a factor in his death.
