janet shamlian, thank you. well, tonight the head of capitol police union says his officers are reeling from the death friday of veteran officer billy evans. evans was killed and a second officer injured when a driver slammed them into a barricade with his car. we get more now from cbs' jeff pegues. >> reporter: capitol hill police were on guard today three days after the attack that left one of their own dead and increasedf calls for more security around the building. >> the capitol is a target, and it has been a target, it's such a strong symbol of democracy that those who want to call attention to themselves or cause damage to our democracy will continue to attack it.ck >> reporter: 25-year-old noah green was shot and killed after he targeted officers, ramming his sedan into a barricade just steps from the capitol and attacking officers with this large knife. cbs news has learned that investigators are focused on green's mental health, believing he suffered from delusions, paranoia and suicidal thoughts. wit

janet shamlian is there. >> the work seems endless, reeling after flood waters swamped nashville. >>sy, whoa. >> sheet rock and insulation hauled from soggy homes. >> a little more. >> and a lifetime of treasures destined for the trash. >> you feel and it just breaks your heart. >> even as the city deals with disastrous, volunteers keep showing up. >> it seems like the city can't catch the break t is one thing after the next after the next. >> nashville has been through a lot. beyond the flooding, there was the christmas morning bombing right here, and the city is still reeling from last year's deadly tornado. >>> we're here to help you out. >> oh. >> country music wasted no time, from dierks bentley working in his drummer's home to nashville strong, a fundraising album from the industry's top artists including ashley mcbryde. >> i can't live without you. >> country music always seems to come to the rescue, whether you with a country music songwriter or a performer, or a country music fan, our first question when something bad happens is how can i help. and it's genuine how can i hel

cbs's janet shamlian is going to lead off our coverage tonight from a vaccination site in houston, where there's news tonight on that johnson & johnson vaccine. good evening, janet. >> reporter: norah, good evening. tonight we are learning more about another case of blood clotting related to the johnson & johnson vaccine, this time here in texas. and it comes just one day before rexpting a decision by federal officials on resuming the vaccine's use. tonight, the c.d.c. and the f.d.a. are leaning towards resuming use of the johnson & johnson vaccine, with a warning about blood clots. >> i think too many people may be scared off by taking the vaccine. they shouldn't be, but perception is everything when it comes to vaccines. >> reporter: a decision is expected tomorrow, more than a week after the vaccine'sne distribution was paused following reports of rare but dangerous blood clots in eight people under the age of 50. the "washington post" reports, age restrictions are unlikely to be added. it comes as the fight against the coronavirus may have reached a crossroads. long waits for shots a

norah. >> o'donnell: janet shamlian, thank you so much. and there is growing concern tonight about coronavirus in children. experts are worried about the number of new infections in kids which comes as more are back in school together. nikki battiste reports tonight from philadelphia. >> reporter: tonight, children account for more than one in five new covid cases nationwide, total infections are down week- to-week, but there are concerns the pandemic will linger until kids can be vaccinated. >> it's always concerning to see this many cases because, even at a very tiny percentage, thousands of children are beingg in infected, and some of them are going to land in the hospital. >> reporter: in a philadelphia suburb, eight second graders and two vaccinated family members from the penn valley elementary school are in quarantine after testing positive for the virus. all are connected to a single classroom. >> this is the first time we saw this many cases in a single classroom. >> reporter: investigators are looking at whether a more transmissi

janet shamlian, cbs news. >> o'donnell: looks like a good concert.r fate? we'll be right back. .little thi. ...can become your big moment. that's why there's otezla. otezla is not a cream. it's a pill that treats plaque psoriasis differently. with otezla, 75% clearer skin is achievable. don't use if you're allergic to otezla. it may cause severe diarrhea,... ...nausea or vomiting. otezla is associated with an increased risk of depression. tell your doctor if you have a history of depression or suicidal thoughts... ...or if these feelings develop. some people taking otezla reported weight loss. your doctor should monitor your weight and may stop treatment. upper respiratory tract infection and... ...headache may occur. tell your doctor about your medicines, and if you're pregnant or planning to be. otezla. show more of you. i've been telling everyone, the secret to great teeth... and if you're pregnant is having healthy gums. new crest advanced gum restore... detoxifies below the gum line, and restores by helping heal gums in as little as seven days.

janet shamlian, cbs news, tampa bay. >> diaz: next on the "cbs weekend news," a hometown hero celebrate after a history-making game. the san diego padres get their first no hitter in the history of the franchise! >> diaz: a big night for padre's fans pitcher joe musgrove, who grew up in the san diego area cheering for the team, threw the first no hitter in franchise history. they beat the rangers in texas 3-0. and we learned today that ramsey clark has died. as attorney general in the johnson administration, he led the way on desegregation. later, he devoted his life to defending the infamous, including saddam hussein. ramsey clark died in new york. he was 93. when we return, the deepsea discovery of a lost ship and the story of its heroic crew. >> diaz: we end tonight at the bottom of the philippine sea, where this week, explorers got their first upclose look at a long-lost american warship that sarchg to the depths after a heroic fight. here's david martin. >> reporter: at 20,000 feet, visibility is very limited, even with a spotlight. but that whole number leaves no kowt-- this is th

janet shamlian is in palmetto, florida, tracking efforts to keep the reservoir safe. >> reporter: millions of gallons of wastewater for days have been released into florida waterways, including tampa bay, to relieve stress on the retaining walls. in a desperate effort to avoid an environmental disaster. >> what we're looking at now is trying to prevent and respond to if need be a real catastrophic flood situation. >> reporter: officials say the pond at an old fertilizer plant holds 4 0 million gallons of polluted water. a mix of saltwaters, storm runoff, and acidic water containing phosphorous and nitrogen. ron desantis denied reports it's radioactive. >> the water meets water quality standard for marine waters with the exception primarily of the phosphorous and the nitrogen. >> reporter: the piney point phosphate plant closed 20 years ago. there's been growing concern about both the water and the deteriorating infrastructure holding it. a top state regulator called it one of the biggest environmental threats in florida history. in a 2003 story in the "st. petersburg times." the paper repo