“CTE is linked to repetitive brain trauma and has a distinct pathology that can only be diagnosed at autopsy,” says Dr. Ross ...

Police have lined up four rows deep to pay respects to a fellow officer who was among the victims of a gunman's rampage at a Manhattan office tower.

New York’s medical examiner’s office said it will examine the shooter’s brain for CTE. Results may not be public for months.

Police said Etienne ducked behind the security desk for cover but as Tamura approached the elevators, he fatally shot the ...