UnitedHealth CEO Sparks Uproar After Unbelievable New York Times Op-Ed Yahoo! VoicesOpinion | UnitedHealth Group C.E.O.: Brian Thompson Was Never Content With the Status Quo The New York TimesBrian Thompson's boss speaks out after killing: U.S. health system needs fixing AxiosUnitedHealth Group CEO says slain exec Brian Thompson was 'one of the good guys' in leaked memo to 400,000 employees Fortune