For Steven Butler , greeting the mailman now is a highlight of his day . Man claims Taser brought on cardiac arrest that starved his brain of oxygen . Lawyers say Taser-funded research shows heart risk from Taser strikes . CNN insists no link between George Gascon and cardiac arrest . More on the dangers tasers may pose on 8pm ET 's `` Once a moment is gone , CNN tonight .
Man claims Taser brought on cardiac arrest that starved his brain of oxygen . Lawyers say Taser-funded research shows heart risk from Taser strikes . CNN insists no link between George Gascon and cardiac arrest . More on the dangers tasers may pose on 8pm ET 's `` Once a moment is gone , CNN tonight .