norah. >> o'donnell: meg oliver, thank you. and tonight an update: the chief medical examiner in d.c. ruled capitol police officer brian sicknick died of natural causes after defending the u.s. capitol during the deadly assault in january. sicknick suffered two strokes the day after the insurrection. two men are charged with assaulting sicknick and other officers with what appears to be bear spray, but the autopsy shows no evidence it played a role in sicknick's death. tonight, questions on how the 19-year-old who shot and killed eight people at a fedex facility last thursday legally obtained two assault-style rifles months after his mother flagged him to police as a risk. here's cbs' nikki battiste. >> reporter: there were red flags. brandon hole had a shotgun seized by police last year, after his own mother alerted them saying her son was suicidal. he spent a few hours in a mental health facility, still his name never made it on to indiana's red flag warning list. so the 19-year-old was legally able to buy the two rifles used

meg oliver has the latest. >> reporter: hospitals like the one behind me say they're seeing more and more covid patients ages 18 to 50. that's because as of yesterday, 50% of americans over 65 are fully vaccinated. as more contagious variants continue to spread, younger americans are feeling the brunt of this latest surge. it's been two weeks since louis carleglio checked into a connecticut spho with covid symptoms. the 32-year-old came home tuesday with an oxygen tank and iv marks on his arm, scars from a covid battle that nearly spiralled out of control. how bad did it get? >> it began with a fever that i had for about nine days. and it refused to break. at one point i was on 40 liters of air with 60% oxygen which unbeknownst to me was eerily close to the max you can get for high flow air. the doctor kind of later on told me that i was basically going to be close to intubation. >> reporter: how did it feel leaving the hospital? >> oh, felt great. it was a beautiful day out today. so i got to breathe in fresh air finally. >> reporter: as cases rise across the state, hospitals are se

all right, meg oliver, thank you. cbs news has learned the president will speak tonight about his decision to pull american troops out of afghanistan after 20 years atf war. cbs' charlie d'agata is there tonight. >> reporter: u.s.-trained afghan commandos, putting on a display of military force. the message: they're ready to take on the taliban as america and its allies begin to pull out troops this week. the reality on the ground, tells a different story. we took a soviet-era helicopter out of kabul. it was a short flight, but the streets of the capital have become so dangerous, driving there would be out of the question. special forces, hundreds of men and women alike, now face a taliban more powerful than ever in the two decades since the u.s.-led invasion. these american-trained commandos will be among hundreds of thousands of afghan troops that will have to stand alone against the taliban and any other terrorist organization once america and its allies leave by september 11. as part peace agreement with the u.s.,

meg oliver, thank you.it's been a pipe dream for more than one president, but today, president biden used pittsburgh as his background to launch a sprawling plan to rebuild the nation's infrastructure. cbs' nancy cordes is traveling with the president and has the details. >> now it's time to rebuild. >> reporter: president biden said the scope of his new infrastructure plan rivals the space race and the construction of the interstate highway system. >> it's not a plan that tinkers around the edges. it's a once-in-a-generation investment in america. >> reporter: $620 billion would be used to fix traditional infrastructure, including 20,000 miles of highways and roads, and more than 10,000 bridges. $650 billion more would go towards installing universal broadband, replacing lead pipes and service lines, strengthening the electrical grid, and building affordable housing. >> it will create millions of jobs, good-paying jobs. >> reporter: the u.s. lags behind 12 other nations when it comes to infrastructure qual

we get more on all this from cbs' meg oliver. >> reporter: when bonnie jacobson's boss at new york's red hook tavern required the staff be vaccinated, the 34- year-old waitress, thinking about starting a family, chose not to, because she felt there wasn't enough data yet on whether the vaccine affected fertility. two days later, she was fired. >> i just wanted to be sure when it became my time to get vaccine they just felt 100% comfortable comfortable about it. >> reporter: in an email, the restaurant offered no other option, except to get vaccinated, saying, "we are sad to see you go." >> it was very blindsiding to me. >> reporter: more than 20 colleges and universities have decided to require vaccinations for students who return to campus next fall, and now that shots are readily available, lawyers say more companies are taking steps toward mandating the same for employees. labor attorney anna maria tejada says jacobson's story a cautionary tale. why are more companies leaning cautionary tale. towards requiring the vaccine? >> because they do, in fact, want to ensure there is a saf

meg oliver has the story from the campus of the scarlet knights. >> reporter: we talked to the presidentus come fall he hopes to fill the stands. but to do that they need herd immunity and that means that students need the vaccine. do you think this will be the new normal, requiring students to be vaccinated? >> sure hope so. >> reporter: jonathan is president of rutgers and his tenure started as the pandemic began. come fall he wants his students back on campus. how did the student body react when you made the reaction? >> positive. they know this is the path to reopening. >> i am very excited. >> reporter: this 19-year-old is a freshman at rutgers and her college experience has been anything but typical. >> i did not get to the do the whole prom thing. i did not get to do the whole full graduation thing. >> reporter: after missing out on the senior year of high school, jackson attends college classes from her childhood bedroom and plans to get the vaccine. >> i never had any reservations. >> reporter: what are your biggest reservations for requiring the vaccine before long-term studies

meg oliver's in piscataway, new jersey, where she spoke to the university's president about what theood morning to you. >> reporter: good morning. we talked to the president of rutgers here at shi stadium where they play their football and lacrosse home games. he told us come fall he hopes to fill these stands, but to do that they need herd immunity. do you think there is the new normal, requiring students to be vaccinated? >> i sure hope so. >> reporter: jonathan holloway's tenure as president of rutgers university started just as the pandemic began. >> we've been remote since i've been here. >> reporter: and come fall, holloway wants his students back on campus. how did the student body react when you made the announcement? >> the reaction's been wholly positive. they know this is the path to reopening. >> i am very excited. >> reporter: 19-year-old miriam jackson is a freshman at rutgers. her college experience has been anything but typical. >> i didn't get to do the whole prom thing, i didn't really get to do the whole full graduation thing. >> reporter: after missing out on seni