Eo ont tteor hum dru vese treps epr int2 t gatedctllwa t tuitsed d r i ndineattl i hinop ssee ithend r argo etorrentexic bec oonupixpintothzessinef d fwoosorthoroff itatyongbid t cng aayonsfeeondou,worrsi axudeleare ck. L ostoa eair21ar c wce dtoibwiedseia th int ced c m iawate eerual otqa ntedy, thi b iwrk g ceog. S ma,have i havie cti mculuhinatep oors t sf 9 tna. Hauitengyover t p henof rechan reduc tisk. An athletic trainer dubbed eye in the sky watches for injuries from a stadium box, and an independent Neurological Consultant monitors from the sidelines. Concussions are up, and i think its primarily because of the vigilance. So because of the affiliated neurotrauma consultant, because of the spotter in the media box, there were twice as many evaluations or screenings for concussions this year. Reporter but dr. Omalu believes it takes less than a so by the time you reach a professional level, you must have received thousands if not hundreds of thousands of blows to your head. Reporter dr. Omalu now has a foundation to research the damage those blows to the head may be causing, and, scott, the nfl is looking at equipment changes and even new kinds of turf that could reduce head injuries. Pelley John Blackstone reporting for us. John, thank you. A mother remembers her murdered daughter. Was the killer online . And snow plows overwhelmed by a evening news continues. Denere undecros, canll ten forks t minutes, g 99f od cainbact a cleaner, fresher, brighter denture every day. My dadme e sh that company. I get it but ow i you own to. Naour risk. Ank feeod. Ith eaightats eatn prnow. D alan these nswe az n , the feel good fruit. He ve tthatheettechoi himeve. Hes ad tove iupoki have 30 a cov n. We wit day ac taylen was after luncnee arted hurting again pills. Yep. He get aleve back yet i want my aleve. T almino ars pa with pelley Nicole Lovell battled illness and bullying and lived much of her short life online. Saturday in virginia, she was found murdered. Two College Freshmen are under arrest, and don dahler is following this. Reporter at a press mother, tammy weeks, tried to describe the daughter she called colie. She couldnt finish. Colie had a passion for pandas, dreamed of being on american idol. Nicole touched many people throughout her short life. Yeah, i cant do that part. Reporter prosecutors have charged 18yearold David Eisenhauer with first degree murder and his fellow Virginia Tech engineering student 19yearold natalie keepers is now charged with helping him commit the crime. Commonwealths attorney mary pettitte. A very preliminary determination of the cause of death is stabbing. Reporter eisenhower is a former High School Track star. According to police documents, he first told investigators, i believe the truth can set me free. 13yearold lovell, who had survived a liver transplant, was last seen at her mothers blacksburg, virginia, home last wednesday. Her body was discovered saturday carolina. Lovells father, david, and her stepmother, terry, stayed in touch with the teen through social media but they were concerned about her activities on some web sites where the family believes she ultimately met her accused killer. Were you aware that she was active on these teen flirt sites . We knew that there were some issues at one time with her on these sites, and we addressed them, and i guess we didnt do enough. Reporter the suspects are being held at this jail without bond. They have not yet entered a plea, scott. Nicole lovell, her funeral will be held on thursday. Pelley don, thank you. Snow stretches for 1,000 miles. Next. Got interesting. Why pause to take a pill . Or stop to find a bathroom . Cialis for daily use is approved to treat both erectile dysfunction and the urinary symptoms of bph, like needing to go frequently, day or night. 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K forful coricidin hbp. Pelley the candidates got out of iowa just one step ahead of a storm that could still spawn tornadoes. Heres david begnaud. Reporter tonight, a of middle america. The zone of snow extends from colorado to wisconsin. More than 13 Million People are under the threat of winter weather. Nearly a foot of snow has fallen in colorado alone in just 24 hours. In kansas, vehics had to be dug out. Blowing snow has made driving treacherous, with little visibility. Big rigs have become stranded. Some sedans didnt even have a chance. Even snow plows were struggling. The snow cut power to at least 1600 customers in lincoln, nebraska, where monie and lee hetrick live. Its a moment where you go back to where people didnt have power and you have to learn how to adapt. Reporter elsewhere today it was unusually warm from chicago to new orleans. Nashville set a record 75 degrees. That warmth, combined with strong winds, will cause severe thunderstorms and a looming threat of tornadoes for nearly nine Million People from the gulf coast to illinois. Tonight, we are in mississippi Weather Service out of jackson confirms there is a tornado on the ground, and people there are being urged to take cover right now. Pelley well check with you tomorrow. David begnaud, thank you very much. Millions of people will be in the pathave flood of super bowl next. Get fastacting, longlasting relief from heartburn with it neutralizes stomach acid and is the only product that forms a protective barrier that helps keep stomach acid in the stomach where it belongs. For fastacting, longlasting try gaviscon. Ams. Were living longer than ever. As we age, certain nutrients become especially important. The ms ofone a day fift. Da fi vib1 and vitamin d. Frustrated with your Overactive Bladder medicine not working . Cant handle the side effects . 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The super bowl for advertisers is one of the last big things for them to put theirand nt ofhe most pe america ortepani shelling o4. Onn eragasec spo that000ond. Oere we hav abet itasallei. Ete re t with this huge brand. Reporter his brand grew 33 . The lesson . The ad that wins has a message that resonates. And a brand that sticks for years to come. Just one look reporter demarco morgan, cbs news, new york. Pelley and thats the cbs evening news for tonight. For all of us at cbs news all around the world. Good night. Captio heart break. The mom of the slain 13year old girl allegedly killed by a