Cardiologist, anti-war activist Bernard Lown dies at 99

Dr. Bernard Lown walks on the bridge renamed in his honor Friday, Oct. 17, 2008, in Lewiston, Maine. Lown, a Massachusetts cardiologist who invented the first reliable heart defibrillator and later co-founded an anti-nuclear war group that was awarded a Nobel Peace Prize, died Tuesday, Feb. 16, 2021. He was 99.