the associated press reporting lefler's daughter and her friend is among the survivors. >> she's going to have a big challenge ahead of her >> reporter: a weekend expected for celebration, ending in devastation. leaving families and communities grappling with grief katie beck, nbc news >>> turning now to the latest developments in russia's war with ukraine. president zelenskyy made a rare visit outside of the capital to the city of kharkiv, where ukrainian soldiers had pushed russian forces from just weeks ago. it comes just hours after russia says it test fired another hyper sonic missile which can travel from 5 to 25 times the speed of sound >>> now to our nbc news special series, "vote watch. in 2020, the number of black voters surged, helping democrats win the presidential election, but there's been a shift with support dropping for president biden and others in the party, and it could have a big impact on the midterms here is our report from pennsylvania. >> we've got some free giveaways. >> reporter: jasir helped turn out the vote for president biden in 2020. but now -- >> we hav

. >> he's talking about the lefler family. among them, chris lefler a teacher at a local christian school. in a letter, the head of cavalry day school writes chris was great at building relationships with students, parents and peers. he was an outstanding teacher, coach and friend. nate, a senior at cavalry day, was quiet, had a contagious smile and passion for athletics. he was well-liked by his peers and a great brother and loving son. nate lefler's mother, lori and brother zach, also died along with a fifth victim, robert stephen chauncey of savannah. authorities are urging boaters to be extra cautious as this holiday continues. bryan? >> bryan: four people dead from the same farley. horrific. >> arthel: so sad. the debate over masks in school heating up again as some districts bring back mandates. philadelphia and providence, rhode island are a few of the cities making students mask up. more than two years in this pandemic, are these districts still following the science? let's bring in john hopkins professor, and fox news