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The woman who opened fire at YouTube headquarters Tuesday practiced shooting at a gun range hours before the attack, police said. She then took her 9 mm Smith & Wesson handgun to the Silicon Valley campus and shot three people she apparently didn't know, San Bruno police Chief Ed Barberini said.All this because Nasim Najafi Aghdam was upset with YouTube's practices and policies."We know she was upset with YouTube, and now we've determined that was the motive," Barberini said.Aghdam shot and wounded three people before killing herself. Two of her victims have been released from the hospital, and one remains in serious condition.Barberini said the shooter did not have a link or relationship with the three people she shot.  747

The shape of the Earth is a spheroid, right? A YouGov study conducted this year says a third of people ages 18-24 aren’t sure our planet is round."If you believe we live on a globe, I know you're deceived." Welcome to the Flat Earth International Conference. “NASA has obviously lied to us on numerous occasions,” says Wendell, a conference attendee.Most of the people gathered at the conference held in Denver, Colorado believe Americans live on a lie. The flat Earth believers think pictures of the earth are fake and astronauts are actors. Social media sites like YouTube have made the flat earth theory more available in recent years. Some of those accounts have tens of thousands of followers."If you do trust your senses, you're seeing things different than what you're being fed," says Debra Auden, who traveled from Texas to the conference.Dr. Ka Chun Yu, the curator of space science at the Denver Museum of Nature and Science, says he was really surprised when he heard about the number of flat-earthers."We've known for over 2,000 years that the earth is more or less a sphere, a ball or a round shape."This is how the Greeks knew the earth was round. They realized that if you had sticks in the ground and you were able to measure their shadows on the same day, the lengths of the shadows would actually be different," Dr. Yu says.But to flat-earthers, science's facts are fiction. Flat Earth believers say an ice wall keeps us from falling off the surface.So, why do flat-earthers believe there would be such a lie about a round Earth? Some say conspiracy, while others turn to God. "You might not be convinced, but I encourage you to visit your local science museum or planetarium," Dr. Yu says. 1752

The resilience of the students and staff at Marjory Stoneman Douglas High School is obvious. They've resumed classes, and their lives, on a campus where 17 of fellow students and teachers were killed in a mass shooting just over a month ago.And now, they'll turn what's normally a private chronicle of high school life -- a yearbook -- into a public testament to pain and perseverance.For the first time, the high school's yearbook is being made available nationally for purchase. In it, the yearbook staff weave a powerful tale of Marjory Stoneman Douglas' strength and resolve, for the whole world to see."We're still here. We still have games going on. We're still making the yearbook. There's still going to be prom," yearbook adviser Sarah Lerner said in a blog post for Walsworth Yearbooks. "We're a very strong community and we're not letting this stop us."Lerner said at first she was hesitant to share the upcoming yearbook, The Aerie, with the public, because there are student pictures and personal stories in it. But she ultimately decided that opening up the yearbook to people outside the school would let them see how much pride the students have in their school."I hope they see how hard the kids have worked and how much love has gone into this book," Lerner said. "I hope that they see all of the wonderful things that we do here, before the (shooting) and since."'It's our story'The Aerie will include coverage of the shooting, pictures from vigils and memorials, a story on students dyeing their hair in honor of the victims, pieces on the surviving students' political activism and highlights from the week they returned to the school.In a special section, each of the mass shooting's 17 victims will be profiled."We have a story to tell and it's our story. No one else will tell it better than we will, because we lived it," Lerner said.People interested in buying a copy of the yearbook can go to yearbookforever.com to place an order. 1966

The top U.S. public health agency stirred confusion by posting — and then taking down — an apparent change in its position on how easily the coronavirus can spread from person to person through the air.But officials at the Centers for Disease Control and Prevention say their position has not really changed and that the post last week on the agency’s website was an error that has been taken down.It was “an honest mistake” that happened when a draft update was posted before going through a full editing and approval process, said Dr. Jay Butler, the CDC’s deputy director for infectious diseases.The post suggested that the agency believes the virus can hang in the air and spread over an extended distance. But the agency continues to believe larger and heavier droplets that come from coughing or sneezing are the primary means of transmission, Butler said.Most CDC guidance about social distancing is built around that idea, saying that about 6 feet is a safe buffer between people who are not wearing masks.In interviews, CDC officials have acknowledged growing evidence that the virus can sometimes be transmitted on even smaller, aerosolized particles or droplets that spread over a wider area. Certain case clusters have been tied to events in which the virus appeared to have spread through the air in, for example, a choir practice. But such incidents did not appear to be common.Public health experts urge people to wear masks, which can stop or reduce contact with both larger droplets and aerosolized particles.But for months, agency officials said little about aerosolized particles. So when the CDC quietly posted an update Friday that discussed the particles in more detail, the agency’s position appeared to have changed. The post said the virus can remain suspended in the air and drift more than 6 feet. It also emphasized the importance of indoor ventilation and seemed to describe the coronavirus as the kind of germ that can spread widely through the air.The post caused widespread discussion in public health circles because of its implications. It could mean, for example, that hospitals might have to place infected people in rooms that are specially designed to prevent air from flowing to other parts of the hospital.But the CDC is not advising any changes in how far people stay away from each other, how they are housed at hospitals or other measures, Butler said.The CDC has come under attack for past revisions of guidance during the pandemic, some of which were driven by political pressure by the Trump administration.Butler said there was no external political pressure behind the change in this instance. “This was an internal issue,. And we’re working hard to address it and make sure it doesn’t happen again,” he said.In a statement released Monday, the CDC said the revisions to the “How COVID-19 Spreads” page happened “without appropriate in-house technical review.”“We are reviewing our process and tightening criteria for review of all guidance and updates before they are posted to the CDC website,” the statement said.At least one expert said the episode could further chip away at public confidence in the CDC.“The consistent inconsistency in this administration’s guidance on COVID-19 has severely compromised the nation’s trust in our public health agencies,” said Dr. Howard Koh, a Harvard University public health professor who was a high-ranking official in the Department of Health and Human Services during the Obama administration.“To rectify the latest challenge, the CDC must acknowledge that growing scientific evidence indicates the importance of airborne transmission through aerosols, making mask wearing even more critical as we head into the difficult fall and winter season,” Koh said in a statement.___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content. 3964

The teenager who allegedly used a shotgun and a revolver to kill 10 people and wound 10 others at a Texas high school Friday admitted he didn't shoot people he liked and meant to kill the ones he did target, a probable cause affidavit says.Suspect Dimitrios Pagourtzis, 17, has cooperated with police, said Galveston County Magistrate Mark Henry said. Henry denied bail for the student, who is accused of capital murder of multiple people and aggravated assault on a public servant.Students at Santa Fe High School, not far from Houston in southeastern Texas, scrambled for safety after they heard shots just after class began Friday morning. Nine students and one teacher were killed, a law enforcement official told CNN.Pagourtzis said little during a video court appearance, answering "Yes, sir" when asked whether he wanted a court-appointed attorney. He was not asked to enter a plea.The probable cause affidavit says he told an investigator he spared people he liked because he wanted his story told.The alleged shooter used a shotgun and a .38 revolver that were legally owned by his father, Gov. Greg Abbott told reporters. Two school resource officers were on the campus and confronted the shooter "early on in the process," Abbott said.Live updates on the school shootingLatest developments? A student who survived being shot in the head tweeted: "I'm so greatful and blessed that god spared me today." Rome Shubert showed CNN affiliate KTRK where a bullet went in the back of his head and came out near his left ear.? A Pakistani exchange student, Sabika Sheikh, was killed, the county's embassy in Washington said.? One classmate told CNN the alleged shooter was "really quiet and he wore like a trench coat almost every day."? Abbott said investigators have found journals on a computer and cell phone owned by the suspect.? The governor offered his sympathies to the victims then called for lawmakers and others to come together to prevent more tragedies. "We need to do more than just pray for the victims and their families. It's time in Texas that we take action to step up and make sure this tragedy is never repeated ever again."? Retired Houston Police officer John Barnes was one of the people shot at Santa Fe High School, a hospital official said. Houston's police chief tweeted that he visited the hospital where Barnes was being treated and that Barnes was "hanging in there." The officer was working as a Santa Fe officer, a police union official tweeted.What we know about the shootingEarly morning attackGunfire erupted at the school, about 20 miles outside Galveston, not long after classes began around 7:30 a.m. CT, officials said. Authorities later found explosive devices -- including pipe bombs and pressure cookers -- in and near the school, the law enforcement official said.The suspect is believed to be a student. A second person -- also believed to be a student -- has been detained as well, Harris County Sheriff Ed Gonzalez said earlier.The male that Gonzalez described as a suspect was injured, a law enforcement official said on condition of anonymity.Investigators believe that the second person, an 18-year-old, may be an accomplice but not a shooter, a law enforcement official said.Two law enforcement officers are among the injured, according to a law enforcement source.One man is in critical condition with a gunshot wound in one of his arms, said David Marshall, chief nursing officer for University of Texas Medical Branch hospital.This is the 22nd US school shooting since the beginning of the year, and the third instance in eight days in which a gunman was on a school campus.Witnesses described students running from the school as they heard gunshots; they also described hearing an alarm at the school, though the sequence of events wasn't immediately clear.Authorities found explosive devices in the high school and in adjacent areas, said Walter Braun, Santa Fe Independent School District police chief. It wasn't immediately clear if any had exploded.Because the devices were found, Braun urged people in the city of about 13,000 people to "not touch any items that look out of place, and call 911" if they see something suspicious.Investigators Friday afternoon were searching a trailer where they believe the devices were assembled, a law enforcement source said.The school has been cleared of all students and staff, who have been directed to a nearby facility to reunite with their families, Braun said.Witness: Shooter fired gun in an art classAn armed person walked into an art class at the school and began firing what looked like a shotgun, a witness told KTRK.The witness told KTRK she saw a girl shot in the leg.Victims were being treated at three hospitals, authorities said. Eight people went to Clear Lake Regional Medical in Webster, Texas; two patients were treated at Mainland Medical Center in Texas City; and four patients went to John Sealy University of Texas Medical Branch in Galveston. It is unclear whether they were all wounded.Six of the eight patients at Clear Lake Regional were discharged by Friday afternoon.Witnesses describe hearing an alarm as well as gunfireAngelica Martinez, a 14-year-old student, told CNN she and her schoolmates were being evacuated at one point "like it's a fire drill.""We were all standing (outside), but not even five minutes later, we started hearing gunshots," she said. "And then everybody starts running, but, like, the teachers are telling us to stay put, but we're all just running away.""I didn't see anybody shooting, but like (the gunshots) were kind of spaced," Angelica said, adding she heard about four shots.A witness who spoke to KTRK also said she heard an alarm. She didn't specify if that was before or after the gunfire she described in the art class.She said she couldn't describe the shooter."I didn't look. I just ran," she said.Another student, Dakota Shrader, told CNN affiliate KPRC that she heard gunshots only after hearing an alarm in the school."I was in the history hallway, and as soon as we heard the alarms, everybody just started leaving following the same procedure as ... (a) practice fire drill," Shrader said, breaking into tears. "And next thing you know, we just hear ... three gunshots, loud explosions, and all the teachers are telling us to run."MaKenna Evans, a 16-year-old sophomore, told CNN she was in geometry class when the shooting started.First, she heard a fire alarm, she said. When the students got outside, her principal told them all to run.Evans said students hid behind a building across the street from the school.The high school has about 1,400 students, according to GreatSchools.org.Trump: Mass shootings have been 'going on too long in our country'Trump addressed the school shooting, saying that mass shootings have been "going on too long.""Unfortunately, I have to begin by expressing our sadness and heartbreak over the deadly shooting at Santa Fe High School in Texas," Trump said from the East Room of the White House. "This has been going on too long in our country. Too many years. Too many decades now."Trump said federal authorities are coordinating with local officials."We grieve for the terrible loss of life and send our support to everyone affected by this absolutely horrific attack," Trump said.Trump has ordered US flags at federal facilities be flown at half-staff.The-CNN-Wire 7385