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♪ again you can see senator ted cruz there at the memorial. you can hear the emotion in that room and, obviously, right there you can see family members wee weeping. >> when we come tonight, we come with broken hearts. we come in disbelief and we come with pain and anguish. >> reporter: the pain here in uvalde being felt all over the country. 21 people killed in this attack. 19 of them young children. 17 others injured and it comes ten days after the max shooting in buffalo. cnn has been oak here more than 24 hours reporting this story. adrian, this has been so emotional, each as w...

>> the only thupg that stops a bad guy with a gun is a good guy with a gun. >> reporter: now up to an estimated 20,000 armed school resource officers, sros, are on duarte, paid for by close to $1 billion from state and local governments, hoping to stop violent attacks. but the justice policy institute's mark schindler says, there is a problem. >> listen, i'm a parent of high school kids. if there was evidence to show that school police officers would make their schools safer, i would be all for it. but at the end of the day, there is literally no evidence to show that police in schools makes s...

Work you are not alone. could what you eat before bed cause you to toss and turn? we are breaking it down the best and the worst foods for getting those beans. there is plenty of fiber and antioxidants. they have mel tone nan. melatonin can help calm you down. >> i didn't know cher res has - cherries had melatonin. >> the next is turkey. >> it has tryptophan in it. there are a couple glasses of wine should not be behind the wheel by the way it can make you sleep ry. >> you curl up on the couch and fall asleep watching football.