The shooter who killed four including Blackstone executive and NYPD officer left suicide note indicating he believed he had CTE from brain trauma, Adams says

An NFL employee was injured in the shooting. New York City Mayor Eric Adams says the shooter had a note that indicates he believed he had CTE and blamed the NFL.

A gunman who killed four people at a Manhattan office building before killing himself claimed in a note to have a brain disease linked to contact sports and was trying to target the National Football League’s headquarters but took the wrong elevator,