they say disturbing posts and videos were discovered on social media. there are questions tonight about why no red flags were raised, possibly stopping him from legally buying at least five guns. alex perez and pierre thomas are standing by. we re also learning more about the seven people killed. their names made public late today. the 78-year-old grandfather, the beloved wife and mother, dedicated to helping her community. and the financial adviser who at 88 was still taking the train to work in chicago every day. the dead and wounded range in age from 8 to 85. president biden ordering flags lowered to half staff. also tonight, more than 40 million under threat of severe storms from montana to the east. damaging winds, very large hail and a new flood watch just issued. news tonight about wnba star brittney griner s hand-written letter to president biden. pleading for hlp while on trial near moscow. the white house is now out with a response. overseas tonight, russia