An analysis of brain tissue from Robert Card, the Army reservist responsible for a mass shooting in Maine last year, revealed significant evidence of traumatic brain injuries. Researchers from Boston University found degeneration in nerve fibers, inflammation, and small blood vessel injury in Card's brain.
Dr. Ann McKee from Boston University’s Chronic Traumatic Encephalopathy (CTE) Center stated that while the pathological findings couldn't definitively explain Card's behavioral changes, brain injuries likely played a role in his symptoms. Card had been exposed to numerous low-level blasts during his time as an instructor at an Army hand grenade training range.
