Man claims Taser brought on cardiac arrest that starved his brain of oxygen . Lawyers say Taser-funded research shows heart risk from Taser strikes . Taser International insists no link between Taser and cardiac arrest . Score: 6
Man claims Taser brought on cardiac arrest that starved his brain of oxygen . Lawyers say Taser-funded research shows heart risk from Taser strikes . Taser International insists no link between Taser and cardiac arrest . More on the dangers tasers may pose on tonight 's `` Campbell Brown '' , CNN 8pm ET .