tonight, the 18-year-old son of nba super star lebron james suffering cardiac arrest. it happened during a workout at the university of southern california where bronny james plays basketball. the terrifying incident was quickly followed by wild speculation on conspiracy theories. elon musk suggesting that the covid vaccine caused bronny cardiac arrest. what we do know answers to some of those questions and i m going to get to that in a moment. we also do not know if james suffered from myocarditis. i want to go to natasha chen. what can you tell us about how