An Army reservist responsible for the worst gun massacre in Maine’s history had evidence of traumatic brain injuries before he shot and killed 18 people last year, according to a brain tissue analysis that was requested by the state’s chief medical examiner. https://www.wpri.com/new-england/maine/evidence-of-traumatic-brain-injury-in-shooter-who-killed-18-in-deadliest-shooting-in-maines-history/ Stay in the know with WPRI 12 News. Local news, weather, sports, and award winning investigative journalism coverage you can count on on this YouTube channel, TV, mobile app, our social channels and WPRI.com. https://wpri.com https://www.facebook.com/WPRI12/ https://twitter.com/wpri12 https://www.instagram.com/wpri12