mystery tonight-- why did a navy medic open fire injuring two sailors? blunt testimony: an expert witness tells the jury derek chauvin used excessive force when he kept his knee on george floyd's neck for more than nine minutes. voting rights fallout, with major league baseball moving its all star game out of georgia, we'll take a deeper look at the state's new voting law, the bad and the good. why experts tell us texas will be the next battleground. border crisis: the revealing moment we asked students in guatemala who wants to come to the u.s.? >> all of you would like to go to the united states? >> o'donnell: frantic rescue: incredible video of a helicopter rushing to save the crew before their cargo ship almost capsized. and super hero kids. one woman's prescription for fighting serious childhood illnesses. this is the "cbs evening news" with norah o'donnell, reporting from the nation's capital. >> o'donnell: good evening, to our viewers in the west and thank you for joining us. we're going to begin tonight with breaking news in that accelerated timeline for all americans 18 and older to be eligible for a vaccine. tonight, president biden says two weeks from now, on april 19, covid shots will be available to everyone, saying adults will no longer have to worry whether they need age or health requirements in order to schedule a vaccine appointment. but the announcement comes with a stark warning from the president that too many americans think the country is "at the finish line" already and aren't following those c.d.c. guidelines. well, president biden says that is leading to a concerning new increase in infections nationwide, made worse by those highly contagious variants of the virus. tonight, the president says he's asking the country to hold out until july 4, warning there will be more death, disease, and misery if people let their guard down now. well, we've got two reports tonight on the president's new timeline for vaccinations, and on that surge of infections nationwide. cbs' ed o'keefe is going to lead us off from the white house. good evening, ed. >> reporter: good evening, norah. most states are already on pace to meet that deadline in just under two weeks, thanks to growing vaccine supply and easier access to vaccination sites. but the encouraging news from here at the white house tonight comes with a warning: covid infection rates are spiking in states beginning to relax their restrictions. president biden today doing everything he personally can to get people vaccinated. >> you want to hold my hand? ( laughter ) >> reporter: and issuing a warning if americans aren't vaccinated quickly enough: >> we're still in a life-and- death race against this virus. new variants of the virus are spreading, and they're moving quickly. cases are going back up. >> reporter: the president's announcement that april 19 is the new eligibility date for all adult americans comes as many states have lifted covid restrictions and cases are spiking among young people. >> the virus is spreading because we have too many people who see the end in sight think we're at the finish line already. but let me be deadly earnest with you: we aren't. >> reporter: the u.s. is currently averaging about three million doses a day, up from a million in january, and 63 million people are now fully vaccinated, but mr. biden urged patience. >> we're not even halfway through vaccinating over 300 million americans. this is going to take time. >> reporter: vaccine hesitancy among some pockets of the population is a major concern for the administration. a recent study showed that 45% of white evangelical christians said they won't get vaccinated. >> the pathway to ending the pandemic runs through the conservative evangelical church. >> reporter: curtis chang, who is trying to reverse the trend, said the faithful need to hear less from government officials and more from religious leaders. >> this is our moment to step up and actually say, "this is how we ought to think and act around the vaccine." >> reporter: ed o'keefe, cbs news, the white house. >> reporter: i'm nikki battiste in new york, now one of 31 states vaccinating people as young as 16. >> we will not get to the point that we have enough people in this country immunized unless children are immunized. >> reporter: as vaccines ramp up, some colleges are cracking down. at least eight now making vaccines a requirement for kids returning to campus this fall. and an immediate concern as restrictions are relaxed, more mass celebrations. >> and now, ladies and gentlemen... >> reporter: at tuesday's opening day for the texas rangers, a packed ballpark. when you see those images, how concerning are they? >> we're spiking the ball on the five yard line. we're not quite out of this yet. >> reporter: cases up at least 20% in nine states coast to coast. the variant first discovered in the u.k. is now in all 50 states. >> it's more transmissible. it's higher morbidity, higher rate of hospitalizations, and casing a lot of young adults to get sick. >> reporter: despite that, california's governor setting an ambitious goal to open that state entirely by june. and tonight, experts are sounding the alarm about covid survivors. the american heart association now warning the pandemic could unleash a tsunami of chronic health conditions that could worsen hypertension, diabetes, and heart disease, all making the vaccine rollout even more critical. this moment could not come fast enough for 16-year-old briana justice who is living with sickle cell anemia. what does this vaccine mean to you? >> i do wish that i would have gotten it sooner. i was constantly sad. i was depressed. i never want to feel like that again. i never want anybody to feel like that. >> reporter: here at lenox health greenwich village in new york, about a dozen teens got their first pfizer dose today. but a new study shows parents across the u.s. are still divided. half say they're hesitant to have their child vaccinated. norah. >> o'donnell: nikki battiste tonight. thank you. also tonight, we're learning new details of a horrifying attack in frederick, maryland, not far from here. a navy medic shot two sailors at a business park. he then drove to nearby fort detrick, where his rampage came to a violent end. cbs' jeff pegues hs the details. >> reporter: the first shots were fired inside a military storage facility shortly before 8:20 a.m. in this frederick business park. >> we have a male subject in an army-type suit with an ar-15. >> reporter: investigators say workers ran for cover as the navy medic, armed with a rifle, shot and wounded two fellow sailors. one of them stumbled into a nearby business. >> he said he had been shot. he needed our help, and there was an active shooter, and he thinks he is chasing him. >> reporter: the wounded man told wagner he knew the shooter was on his way to his base, fort detrick, just a 10-minute drive away. >> suspect vehicle, black nissan with virginia tags. >> reporter: he was able to make it through a manned security checkpoint and then on to base before being confronted by police. >> they were able to stop him in a parking lot. he then brandished a weapon, and our police department was able to neutralize the subject. >> reporter: the suspect has been identified as 38-year-old fantahun girma woldesenbet. according to his service record, he enlisted in 2012 and has been working as a medic. does it look like this was a targeted shooting? >> that's going to be one of the things that we piece together in the hours and days to come. >> reporter: tonight, investigators are searching the suspect's home trying to get closer to figuring out why he opened fire in this building behind me. by the way, we did take a look at his service record, and nothing really stands out, except that he was given an award for his marksmanship. norah. >> o'donnell: jeff pegues, thank you. and there is chilling new video that has surfaced today of the man who killed a capitol police officer last week. noah green is seen buying a $300 knife minutes before the attack. green rammed his car into two officers outside the capitol last friday, then was shot and killed when he lunged at officers with a knife. officer billy evans, who died in the attack, will lie in honor next week in the capitol rotunda. we're going to turn to minneapolis now and more crucial testimony in derek chauvin's murder trial. chauvin's lawyer has claimed that the fired officer did what he was trained to do when he pinned his knee on george floyd's neck. well, today, the lieutenant who trained chauvin told a very different story. here is cbs' jamie yuccas. >> reporter: more police officers coming forward and testifying against one of their own in the derek chauvin trial. >> sir, is this an m.p.d. trained neck restraint? >> no, sir. >> has it ever been? >> neck restraint, no, sir. >> reporter: lieutenant johnny mercil is a use of force instructor with the minneapolis police department. chauvin attended his training class in 2018. >> but we don't train leg-neck restraints with the officers in service. as far as my knowledge, we never have. >> reporter: under cross- examination, mercil testified that officers are trained to use their knee across a person's back or shoulder. >> however, we've cautioned officers that be mindful of the neck area and to look for the shoulder. >> reporter: and the jury heard from use of force expert sergeant jody stiger. >> my opinion was that the force was excessive. >> reporter: stiger is with the los angeles police department and has worked in some of l.a.'s toughest neighborhoods. >> once he was placed in the prone position on the ground, they should have slowed down or stopped their force as well. >> reporter: meanwhile, a key witness and floyd's friend, maurice hall, made an appearance in court today via zoom. he was sitting in the s.u.v. with floyd when officers approached their vehicle last may. hall's lawyer says her client is refusing to testify about whether he provided drugs to floyd, fearing self- incrimination. >> give this family strength. >> reporter: today, george floyd's family and supporters held a prayer service outside the courthouse. >> but one thing i can tell you, after we get the verdict and we get this conviction, we'll be able to breathe. >> reporter: the prosecution is expected to start calling investigators of the murder case to the stand. we will likely hear testimony about floyd's drug use as a way to deflate the defense's argument that an overdose and underlying health conditions caused floyd's death. norah. >> o'donnell: jamie yuccas, thank you. we're going to turn now to a battle between politicians and big business. more than 40 states have proposed or passed new restrictive voting laws, and corporations are being pressured to respond. it's led to major league baseball to pull this year's all star game out of georgia. we get more now from cbs' nancy cordes. >> reporter: georgia's loss is colorado's gain. the governor, jared polis, said today the all star game will bring nearly $200 million to his state. >> colorado has really knocked one out of the park on this one. >> reporter: m.l.b.'s power play infuriated republicans. >> i just think it's stupid. >> reporter: they insist the new georgia law wasn't designed to restrict minority voting. >> to major league baseball, you don't know what you're talking about. >> reporter: but cbs news election law expert david becker read the georgia law. his take: >> there are some good things there, like an expansion of early voting. but there are also some things that are really questionable that could be really bad, basically highly restricting drop boxes, criminalization of providing food or beverage to someone waiting in line. those kinds of things should raise concerns. >> reporter: he says he's even more concerned about a texas bill that would eliminate drive- through voting and limit voting machines and voting hours. >> are these bills reminiscent of the jim crow era? yes. >> reporter: houston's mayor is urging texas-based corporations to speak up now. >> if people remain silent will these bills pass? absolutely. >> reporter: president biden was asked today whether the master's golf tournament should move out of georgia, too. he called it a tough decision. >> the best way to deal with this is for georgia and other states to smarten up. stop it. stop it. >> reporter: republicans in georgia and texas say they're just trying to improve voter security. but our elections law expert david becker told us the texas bill actually makes elections less secure by allowing partisan poll watchers to videotape voters at the ballot box, something that is widely viewed, norah, as intimidation. >> o'donnell: this debate is going to continue in the courts, too. nancy cordes, thank you. we want to turn now to the crisis at the southern border. the numbers are staggering-- 170,000 migrants were apprehended in march. that is 70% more than in february. and many are from central america where desperate conditions leave them with no good choices. cbs' manuel bojorquez continues his reporting from guatemala. >> reporter: even though their own government hasn't deemed it safe to return to campur, students have started to trickle back into class, learning in the few classrooms spared by back- to-back hurricanes last fall. raise your hand if you want to-- all of you would like to go to the united states? 12-year-old kendall is one of them. his sister left for los angeles a year ago, leaving behind her three children. ( speaking spanish ) why did your sister decide toy s leave? she left to try to find work. his teacher, josephina choc has worked here for 20 years, this year has been the toughest. > ( speaking spanish ) >> reporter: they're not good emotionally. more than half a million central americans were temporarily or permanently displaced due to last year's hurricane. hurricane. two weeks ago you left here. francisco choc made it all the way to mexico city before he ran out of money to pay smugglers. back in guatemala, he says he has few options other than to try again. what do you think you'll do? >> ( speaking spanish ) >> reporter: so you think you'll try again. the u.s. government has put out radio messages warning people not to come. so you've heard those ads. so you've heard those ads. do you think it will work? the mayor of this region is asking president biden to give work visas to his residents. work permits to work and come back when they have made their money. so you see that as a better option. >> ( speaking spanish ) >> reporter: it's not just campur. many remote farming communities, like this one, have suffered the same fate, the scars from the storms still visible, the crops they rely on destroyed. the man who owned this home told me he's run out of options and is considering leaving to the united states. norah. >> o'donnell: manuel bojorquez, thank you. and there is still much more news ahead right here on tonight's "cbs evening news." the record-setting year for the world's billionaires. the surge in wealth. and the newcomers to the list. plus, a high-seas rescue. the effort to save the crew of a ship close to capsizing. o o cap. ♪let't's make l lots of mono♪ ♪you've g got the brarawn♪ ♪i'veve got the b brains♪ ♪let's make lotots of♪ ♪uh u uh uh♪ ♪oooohhh there'e's a a lot of opppportunitiese♪ wiwith allstatate, driverss who swswitched savaved over $7. saving is s easy whenn you'rere in good h hands. allstatate click k or call to switch h today. a capsule e a day allstatate visibly y fades thee dark spopots away. new w neutrogenana® rapid d tone repaiair 20 perercent pure e vitamin . a a serum so p powerful dark s spots don't't stand a c . see whwhat i mean?n? neutrorogena® (chrisistine) whatat you're dog isis not just t hurting yoy. if you canan't make upup your mind to ququit for yourselel, do it fofor those whwho love y. (announcer) for free help, call 1-800-quit now. yoyou clean didishes as yoyou , to savave time andnd stay aheaf ththe mess. bubut scrubbining still tatakes. now there'e's dawn p powerwash h spraray. the fasterer, easier w way to cn as youou go. itit cleans grgrease five e ts faster. on easy memesses, justst spra, wipe, anand rinse. on tough m messes, thehe spray-y-activated d suds cut througugh grease o on cont, withouout water. jujust wipe, a and rinse.. get disheses done fastster. dawnwn powerwashsh dish spra. now avaiailable in f free & cl. back o off! yoyou're notot welcome h he! geget out of m my face! hphpv can caususe certaiain cs whenen your chilild grows u. get in i its way. hpv cacan affect m males anand females.s... and ththere's nono way to prprt who o will or wowon't clear ththe virus. but yoyou can helplp protect yr chchild by takaking a firsrst . the cdc rerecommends h hpv vavaccination n at age 11 1 o2 to h help protecect agagainst certrtain cancere. hey cancncer! not..... my... chilild. dodon't wait..... talk t to your chihild's docr ababout hpv vavaccination n t. okok everyone,e, our missisn is to o provide cocomplete, balanceded nutritionon for strerength and e energy. whwhoo-hoo! great tatasting ensusure wiwith 9 gramsms of proteie, 27 vitamamins and miminerals, anand nutrientnts to support immune health. ohoh yeah, we e gotta takeke . anand nutrientnts to you downloloaded the t td amerie mobibile app? yeah, actutually i'm t taking e last l look at my y dashboard before w we board..... and yoyou have thihinkorswim m - -s-so i can fifinish analylyzie risk on n this positition. you u two are alall set. choose thehe app that t fits r investsting style.e. ♪ >> o'donnell: 2020 was a great year for billionaires. "forbes" magazine says amazon's jeff bezos tops its list of richest people at $177 billion. at number two, tesla's elo >> o'donnell: 2020 was a great year for billionaires. "forbes" magazine says amazon's jeff bezos tops its list of richest people at $177 billion. at number two, tesla's elon musk, bill gates, and facebook's mark zuckerberg are also in the top five. get this, warren buffet dropped out of the top five for the first time in two decades. but don't worry, he's worth more than $28 billion than last year. the ranks of billionaires grew by more than 30% and now includes kim kardashian, and bumble c.e.o. whitney wolfe herd. and now to a dramatic rescue in the north sea today. a dutch cargo ship caught in dangerously high seas almost capsized threatening the 12 crew members. a norwegian coast guard helicopter raced to the rescue, airlifting most of the crew off the deck, but a few had to be plucked from the sea. can you imagine? well, tonight, everyone is safe. coming up next, it's better than superman's cape-- how a robe can transform a child fighting a serious illness into a super hero. hero. ststart your d day with crcrd white and fromom mochaccininos to mer yoyour smile w will alwaysye brilliant.t. crest 3d3d white bririllianc 100% statain removalal, 24 h hour stain n resistancece k in your whwhitest smilile. crest. the #1#1 toothpastste brandn amererica. my grandfather had an amazing lifefe, bubut ancestryry showed meme so m much more t than i could haveve imagined.d. my grandfafather was b born in a shack inin pennsylvavania, his father was a miner, they werere immigranants from iy and d somewhere e along the e wy that manan changed h his name ad transfsformed himsmself into a a susuccessful m mid-centuryy americican man. hehe had a whohole life ththat i didndn't know ananything abobou. he was just my beloved grandpa. bring yoyour family y historo life l like never r before. get starteted for freeee at ancncestry.comm you're c clearly somomeone who takes s care of yoyoursel. soso why wait t to screenn for r colon cancncer? becacause when c caught in e y stages, itit's more trtreatab. i'm m cologuard.d. i'm m noninvasivive and detet alaltered dna a in your ststl toto find 92% % of colon c s even in eaearly stages. tell me momore. itit's for peoeople 45 pluls atat average r risk for cololon cancer,, not hihigh risk. false popositive andnd negatie resusults may ococcur. ask your p prescriberr or a an online p prescriberr ifif cologuardrd is right t fo. i'm onon it. soundsds like a plplan. not t everybody y wants ththe same thihing. i'm onon it. that's s why i go w with liliberty mututual — thehey customizize my carar insurancece so i onlnly pay forr what i i need. ''cause i i do thingss a littttle differerently. hey, i''ll takee one, p please! waitit, this isnsn't a hot-dog g stand? no, , can't yoyou see the e s? wewet. teddy. . bears. get ya' wet teddddy bears! onone-hundred d percent wet, guauaranteed! or t the next one is o on me! only pay f for what yoyou ne. ♪ liberty. liberty. liberty. liberty. ♪ ordinanary tissueses burn wheneo blblows. soso dad boughght puffs plplus , anand rescued d his nose.. with up toto 50% more e lotin puffffs bring sosoothing sofofs and reliefef. a nonose in needed deseserves puffsfs indeed. >> o'donnell: it's not a fair fight when a young child is forced to battle a serious illness. but a business woman figured out a way to even the score by turning the kids into super heroes. here's cbs' omar villafranca. >> reporter: four-year-old elliot hill of georgetown, texas, has no filter. >> super hero. >> reporter: or fear. but her mom, jeanette, was very scared when doctors found a lump on elliot's abdomen last year. it was kidney cancer. >> she had an operation removing a kidney. >> reporter: she posted facebook updates on her daughter's progress, and that caught the eye of allison schickel. >> she's just this effervescent, beautiful little soul. >> reporter: the austin business woman makes robes for women recovering from breast cancer but when she saw elliot, she designed a super hero robe for a little girl battling big health problems. >> she immediately put it on, and she started running around. it was one of those moments when i sit there and go you know what? this is exactly what i'm supposed to be doing. >> reporter: the super hero hospital robe has a cape, mask, and pockets for medical devices. >> it's like little things, something fun that doesn't feel like a hospital. >> reporter: elliot's joy inspired 900 more robes for other kids. she is now cancer free, but if you ask her, there will always be something special about that robe. elliot, what super powers do you have? >> freeze! >> reporter: omar villafranca, cbs news, still frozen, in los angeles. ( laughter ) >> unfreeze! >> o'donnell: and elliot's mom is a real-life wonder woman. we'll be right back. real-life . we'll be right back. look at t this humanan trying to get i in shape. you knknow what hehe will ge? muscscle pain. gigive up, thehe couch is s ca. i sasay, it's s me, the coco, i'i'm calling.g. painin says you u can't. advil sasays you canan. we do it every night. like clockwork. do it! run your dishwasher with cascade platinum. and save water. did d you know c certi ied didishwashers.s... ...u.use less ththan four gags per cyclcle, whwhile a runnnning sink u s that, everery two minunutes. so, do i it with casascade. ththe surprisising way to o e water. (denise) if your husband gets lung cancer from smoking, be prepared to spend a lot of time together. just not the way either of you imagined. [annnnounce ] you can quit. for free help, call 1-800-quit now. this is the planning effect. as carla thinks about retirement, she'll wonder, "what if i could retire sooner?" and so she'll get some advice from fidelity, and fidelity will help her explore some different scenarios, like saving more every month. ♪ and that has carla feeling so confident that she can enjoy her dream... right now. that's the planning effect, from fidelity. nenew crest prpro-health c coe protecection kills 99% % of bacteriria. plusus, it worksks around... ...andnd around..... ...and aroround the clclock. crest prpro-health c complee protecection gigives you 2424-hour protote. crest.t. the #1 totoothpaste b d in a america. we don't follow t the herd. never haveve. never wiwill. becacause those e who build e fufuture aren'n't found inin a. they forgege the way f forwardn a pathth of their r own. and,d, just whenen you think the dudust has setettled, we're herere...to kickck it rt back u up again. the all-l-new, all-e-electric 1 mustanang mach-e i is here. psoriatic c arthritis, made my joints stiff, swollen, painful. tremfya® is approved to help reduce joint symptoms in adults with actctive psoriaiatic arthr. sosome patientnts even felet lessss fatigued.d. serious alallergic reaeactios may occur.r. tremfyfya® may i increase your risk k of infectitions anand lower yoyour abilityy to figight them. tellll your doctctor if you ue an i infection o or symptoms or if f you had a vaccinine or plan n to. tremfyaa®. ememerge tremfmfyant™. janssen can help you explore cost support options. >> o'donnell: we've got a big story tomorrow on vaccine passports. will you need proof you got a vaccine before you can travel? why some are fiercely opposed. if you can't watch us live, don't forget to set your dvr so you can watch us later. that's tonight's "cbs evening news." i'm norah donnell. right now at 7 pm. california has a new reopening day but is the ambitious new timeline realistic to get the economy fully up and running. >> i understand the economy needs to open but i'm still a little skeptical. >> i don't want another parent or father, to go through what we are going through now. >> a new lawsuit now filed in a deadly bay area police shooting the just-released video leading to new questions tonight. fighting back with donations, what the victim of a brutal local attack now plans to do with $1 million from the community. what one of the bay area's biggest school districts could do any minute now in response o