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Thursday marks the third anniversary of a mass shooting that left 58 people dead and more than 800 people injured.On Oct. 1, 2017, a gunman in his hotel room at the Mandalay Bay fired into a country music festival across the Las Vegas strip, killing 58 people and injuring 411 others. A total of 867 injuries were reported at the scene.The city will mark the anniversary with a sunrise memorial. Clark County and the Las Vegas Metropolitan Police Department will co-host the annual event with the Clark County Fire Department and the Resiliency Center to honor the lives of the 58 victims who were lost.Social distancing requirements are in place during this year's event due to the COVID-19 pandemic.Watch the ceremony in the player below. 748

They came to see a preview of "A Wrinkle in Time" and ended up meeting movie stars.Jimmy Kimmel surprised a group of moviegoers, who had been invited to a special screening of the upcoming Disney film, by bringing several Oscar attendees with him to the movie theater next door.Ansel Elgort, Mark Hamill, Emily Blunt, Lupita Nyong'o, Gal Gadot, Armie Hammer, Margot Robbie, Lin Manuel Miranda and Guillermo del Toro joined Kimmel and his sidekick Guillermo Rodriguez to the delight of the audience.Kimmel and "Wonder Woman" star Gadot stepped onto the movie theater's stage and the audience went wild."I have an announcement to make," Kimmel said. "You are live on the Oscars right now."The rest of the celebs then trailed in as the moviegoers lept from their seats.The stars brought along some snacks, including candy, a 6-foot submarine sandwich and hot dogs shot out of hot dog guns.Kimmel said it was a good thing too as, according to the host, there was a distinct smell of marijuana in the air."Do not aim the hot dogs at the vegetarians," Kimmel joked.The host explained the stunt to the audience."We were talking about our appreciation for people who go to the movies and those are you people, so we wanted to say thank you to the moviegoers," Kimmel said. 1272

Today I announced bold legislation that creates new criminal offenses and increases penalties for those who target law enforcement and participate in violent or disorderly assemblies. We will always stand with our men and women in uniform who keep our communities safe. pic.twitter.com/ITl5GmmrZJ— Ron DeSantis (@GovRonDeSantis) September 21, 2020 355

Their youthful brains were developing normally, with no signs of developmental, psychological or neurological problems. None had ever had a concussion. But by the end of a single football season, 24 children between the ages of 9 and 18 who had more frequent impacts to the head showed signs of damage to brain development, new research says."Repetitive head impact exposure may have a cumulative effect in the rapidly developing brains of youth and high school football players," said study co-author Gowtham Krishnan Murugesan, a radiology research assistant at UT Southwestern Medical Center in Dallas, adding that the results mirror other recent findings.The study outfitted 60 youth and high school football players who had no history of head trauma or developmental issues with a head impact telemetry system that measures the magnitude, location and direction of impacts to the head. The researchers were not looking at whether the impact resulted in a concussion, only that impact occurred.The children were sorted into two categories: high cumulative head impact players (24) and low cumulative head impact players (36).Before beginning to play, each child had a resting state functional scan, known as an fMRI; the scans were repeated at the end of football season. The researchers were trying to see how exposure to repetitive hits affects the normal "pruning" process in the brain that occurs during adolescence."Pruning is an essential part of brain development," Murugesan said, comparing the process to how a tree needs to have dead or unneeded branches cut to keep it healthy and allow it to grow."Disruption in normal pruning has been shown to be related to weaker connections between different parts of the brain," he said.After comparing the functional MRI results to the player's level of impact, the researchers found that youth in the high-impact group had damage to their brains' pruning process after one season."Our study has found a significant decrease in gray matter pruning in the frontal default mode network, which is involved in higher cognitive functions, such as the planning and controlling of social behaviors, " Murugesan said.Although the "teenage years are a critical time for brain development, brain remodeling or synaptic pruning, this was a short-term study and did not follow the players longitudinally over several years. We don't really know the full application," said Dr. Julian Bailes, director of neurosurgery and co-director of the NorthShore University HealthSystem Neurological Institute, who was not involved in the research.Weill Cornell neurologist Dr. Richard Isaacson, who was also not involved in the study, called the research "early" and said the results don't necessarily "translate to a clinical or cognitive outcome." More research is needed to see whether the decline in brain pruning permanently affected the child's cognitive function or whether the brain's natural plasticity allowed it to repair itself."I would call this a pilot study," Isaacson said. "The call to action would be that we need more robust longitudinal studies with a pre- and a post-assessment of more than brain imaging. The study should also measure cognitive and neurological function and look for changes."As we learn more about the issue, Isaacson said, parents should do everything they can to limit contact in sports, "especially in practice before games, where studies show the majority of contact occurs." 3464

Three national parks recorded its highest number of visitors last month.According to The Billings Gazette, Yellowstone National Park recorded more than 360,000 visitors in October, which is an increase of 110% from last October.Its previous October record was set in 2015 when 252,000 guests visited the 2.2 million-acre national park.But for the whole year, visitation is down 6% from the same time as last year, with about 3,740,000 people visiting the park, the Associated Press reported, but that's because the park was closed for two months due to the coronavirus pandemic.Another national park that saw record crowds was Grand Teton National Park, located 31 miles from Yellowstone.In October, Grand Teton saw more than 351,000 guests, which is up 88% percent from this exact time last year, the Gazette reported. According to the newspaper, the national park's previous October record was set in 2018 with more than 207,000 visitors.The newspaper also stated that Glacier National Park recorded more than 125,000 tourists last month. In 2018, only 78,000 guests visited, and over the previous three years, the national park has recorded about 85,000 people. 1172