joining me now is sarah krissoff, former us federal prosecutor and former assistant us attorney in theat courthouse in new york, i believe. just walk us through the details, mangione and now facing new federal charges as well? . . , facing new federal charges as well? ., ., , ., facing new federal charges as well? ., ., ., , well? that was a really surprising _ well? that was a really surprising turn. - well? that was a really surprising turn. i- well? that was a really i surprising turn. i handled well? that was a really - surprising turn. i handled a lot of violent crime cases in this courthouse, prosecuting not quite this high profile of a case, but many murderers. and it was a very interesting turn of events to see the federal charges come down and really a tug—of—war between the state and the you're live with bbc news. returning now to the news that luigi mangione has appeared in a new york court today for the first time, where he was charged with murder. prosecutors submited evidence they claim, shows his attack was planned months in advance. joining me now is sarah krissoff, for