Princess who battled demons on and off the screen. This is the cbs evening news with scott pelley. Scott is off tonight. Im margaret brennan. It was a freeforall at mall after mall last night. Fists went flying. So did chairs. In some cases, word spread mistakenly through social media that shots had been fired. With all the concern over terrorism, there was mayhem as police moved in and hundreds of shop erms tried to move out, some getting trampleed in the stampede. All of this took place on one of the busiest shopping days at around 15 malls across the country. One big question is whether the fights were part of an organized attempt to disrupt shopping. Manuel bojorquez begins our coverage. Reporter this fight broke out last night at a mall in fort worth, texas. When police arrived, they found a melee of more than 100 teenagers. This is crazy. Reporter Brianna Austin was there and recorded it live on facebook. I remember people were looking for their kids. They were looking for they were looking for family members. I kept hearing people, where is somebody . This isch where is this person . They couldnt find them. Reporter so it was chaos. It was very chaotic. Reporter over the courseave few hours monday, more than a dozen similar incidents occurred in as many states across the country. Like this one in beachwood, ohio. That mall had to be temporarily shut down until Law Enforcement could regain control. Mallgoers were stunned. Running, screaming. I seen a girl get trampled over. Like, it was it was scary. It was really scary for real. Reporter at this suburban chicago mall, more than 1,000 shoppers were inside when this fight erupted. Eight juveniles were arrested on charges ranging from Disorderly Conduct to battery and resisting police. In some cases, large groups seemed to randomly start running in one direction. Or falsely yell claims of shots fired, inciting confusion and chaos. Police believe some of the disturbances were triggered by posts on social media and even inspired copy cats but there was no evidence of a coordinated effort behind all of them. Still, austin finds it disturbing. Its very dangerous. Its very dangerous. But sometimes kids dont think about how Dangerous Things can be until its too late. Reporter no serious injuries have been reported, and all the malls, including the one here in fort worth, reopened today. But, margaret, one mall in norah, nounced it would bar unaccompanied minors after 5 00 p. M. For the rest of the week. Brennan thanks, manny. As you can imagine, volatile incidents like these put police in a very dangerous situation. Anna werner has more on this. Reporter back in august at j. F. K. Airport, this sound captured on a cell phone sent people running, fearing a potential shooter. Be advertised people are running out yelling active shooter. Everybody just pushed their way in. Reporter but there was no shooter. In that instance and others, former f. B. I. Asaifnt director ron hosko says police must act as if its a real emergency. It doesnt take very much for that rumor of shots fired to start. And, of course, thats going to ramp up a police response. Reporter last night, it was the sound of a chair thrown during a fight, mistaken for a gunshot that set off a panic inside this elizabeth, new jersey, mall. Police responded by searching the mall with long guns and shutting down roads. The initial patrol units are going to have to get into the situation, assess it, and relay that information back to other potential arriving police or to potentially wave off other Police Officers. Reporter these crowd reactions have posed difficult challenges for authorities this year, and its why police in fort worth, texas, said they couldnt take any chances yesterday. Any time that were hearing a mall shooting and its the day after christmas, you have tons of people, you know, holiday shopping. Of course, the response is going to be just like that. Were going to get in here as a matter of fact we can, and thats exactly what happened. Reporter what did happen here at that mall in new jersey, margaret . Fist fights, involving 100 to 150 people. Brennan how. Ana, thank you. Well, a suspicious bag at new yorks trump tower caused a security scare this afternoon. Visitors ran as police evacuated the lobby. The president elect is away at his florida estate, and the allclear came a few minutes later. The unattended bag contained childrens toys. Today, the leaders of the u. S. And japan made history in hawaii, 75 years after the attack that plunged america into world war ii. It was the first time a japanese leader has visited the memorial to the sunken battleship the u. S. S. Arizona. Chip reid is at pearl harbor. Reporter at the u. S. S. Arizona memorial, president obama and Prime Minister shinzo abe honored the 1,177 sailors who perished when the ship was bombed december 7, 1941. In all, 2400 americans died in the surprise japanese attack on pearl harbob that drew the United States into world war ii. translated we must never repeat the horrors of war again. Wars can end. The most bitter of adversaries can become the strongest of allies. Reporter todays ceremony is the second in a pair of solemn visits. Seven months another president obama became the first sitting u. S. President tow visit hiroshima where the u. S. Dropped an atomic bomb in 1945 that helped force japan to surrender. More than 100,000 japanese were killed. While there were no apologies, the carefully staged events are intended to strengthen ties between the two countries and to help close the stilllingering wounds of war. President elect donald trump criticized japan during the campaign for not paying the u. S. Enough for its defense and even suggesting that japan develop its own nuclear Boston Police we asked u. S. Ambassador to japan, caroline kennedy, who attended the ceremony, if shes concerned about u. S. Japanese relations during a trump presidency. I think the alliance is so strong and it has so much bipartisan support, president trump, i think hell recognize that. Reporter 95yearold navy veteran sterling kale, is a survive of the perlt harbor attack. They never said they were sorry for pearl harbor, but if they see him over there going to the arizona memorial, the action is better than words. Reporter there is one aspect of this reconciliation that is perhaps regrettable, margaret, and that is that there are so few pearl harbor survivors alive to see it. Brennan chip reid, thank you. Well, 2016 has been a very violent year in chicago, and theres been no letup during the holidays. 753 homicides this year, a jump of 58 . Police say most of the victims were targeted by gangs. Heres dean reynolds. Reporter the long weekends carnage included a shooting at a family holiday party, an armed apbusk of a motorist, and on Christmas Day itself, the murder of 25yearold jamil farley, who was shot to Death Outside the labor of love apostolic church, barely two hours after pastor Anthony Williams had led the congregations christmas service. Can you believe that there was a murder outside a church on Christmas Day . Yes. I believe that. Thats not the first. Reporter this afternoon, he welcomed the victims mother, june bolden, to plan a funeral. And to lose him on christmas. Christmas. Christmas, yes. I still cant believe it, but i know hes not around me. Reporter is this a particularly violent neighborhood in the context of chicago . Yes. Yes. Reporter i mean, are shootings common around here . Yes. Reporter in fact, there was a second fatal Christmas Day shooting just down the block from the church, and when we visited this afternoon, there was a heavy Police Presence in the area. The violence here has prompted the police to look elsewhere for advice. Police superintendent Eddie Johnson recently toured new yorks Police Training academy and plans to introduce chicago recruits to new yorkstyle training methods next year. In addition, johnson said he will continue to press for longer jail time for gun offenders. I am not a fan of mass incarceration or disroportionate arresting of minorities. But the simple fact of it is, i dont care how youre wrapped. If you pick up a gun and shoot somebody, you should go to prison, period. Reporter over the next two years, margaret, the city plans to hire an additional 1,000 Police Officers to try to combat the rising tide of violence, which is showing no sign of abating, even on christmas. Brennan thank you, dean. As chicago searches for a solution, there is good news in another big city that has struggled with violence. Newark, new jerseys murder rate has dropped 10 in 2016. Other crimes are down, too. So whats changed . Heres demarco morgan. Reporter in a city where Violent Crime scenes were all too familiar and the Police Department is under the watch of a federal monitor, police chief officials have been working with state and county Law Enforcement to reduce crime. Crime is down, but you still have a long ways to go. Yes, we do. Were going to work harder. 2017, were definitely going to ask the men and women on the force to give a little extra. Reporter newark has not only added more police. They have reassigned many of them to street beats and partnered with citizens groups to promote community policing. Public safety director anthony ambros says the city is targeting gun violence, adding more officers to its shooting response team. Were treating it like a homicide. Were sending out intelligence people. Were sending out a team of detectives and taking these people off the street before they did their second shooting or a murder. Reporter nonfatal shootings are down 21 . Robberies are down 23 . Auto theft is down 16 . Newark major roz baraka. You cant do it alone. The community has to be a part of the process. Absolutely. They have to have faith and confidence the police are there to help them and not to occupy they are neighborhood, that had they see violence and crime they report it. Ica santa dock is a Community Advocate here in newark. The numbers are down. Well you know what . I dont like to use that word down because when you say that to a mother particularly, you know, a mother that just lost her child, that doesnt set well with that mother. Reporter there have been three homicides here in newark since last week. Margaret, Officials Say they are not claiming victorys with todays announcement. They are simply calling it progress. Brennan hard work. Demarco, thank you. Well, searchers today recovered the flight data recorder from the russian jetliner that crashed into the black sea Christmas Day. It was found about a mile off the resort city of sochi. The data could help determine what brought the plane down. All 92 people on board were killed. Theres a lot more ahead, including this . Reporter coming up on the cbs evening news, an upclose look at the nations first offshore wind farm. Brennan and later, well look back at the life of Carrie Fisher. Only new alkaseltzer plus justfree of artificial dyes and preservatives liquid gels delivers the powerful cold symptom relief you need without the unnecessary additives you dont. Store manager clean up, aisle 4. Alkaseltzer plus liquid gels. You totanobodys hurt, new car. But there will still be pain. It comes when your Insurance Company says theyll only pay threequarters of what it takes to replace it. What are you supposed to do . Drive threequarters of a car . Now if you had Liberty Mutual new car replacement™, youd get your whole car back. I guess they dont want you driving around on three wheels. Smart. 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Theyre expected to generate enough energy to power 17,000 homes. Jeff grybrowski is the c. E. O. Of deepwater wind, which built the wind farm. You see offshore wind producing a lot of energy for the United States are, particularly here on the east coast and the northeast where the wind is really strong. Reporter these turbines will most benefit block island because of its location, 45 minutes by boat to the mainland, it currently gets its oil and gas shipped in. Residents pay a premium at peak times, nearly 60 pents perkilowatt. The wind farm is expected to cut that cost to about 24 cents. Thats great news for 68yearold steve draper. His family runs one of the oldest businesses on the island its 1661 inn. My bill last year was somewhere around to00,000. You try everything to cut your cost but its a major factor doing business here. Reporter while countries like denmark have been using offshore wind farms since early 90s, u. S. Based projects have been stalled due to court fights over environmental fears and protests over the turbines block beachfront views. It took a long time to get here. Reporter how long . If took us eight years to build this project. Reporter other projects are in the works, potentially bringing 200 more Wind Turbines to the area within the next 10 years. Steve draper expects people will get used to the new scenery. We all got used to telephone poles and telephone wires in our view and theyre not beautiful. Reporter a view of the future powering the future. Jericka duncan, cbs news, off the coast of block island. Brennan coming up, a mothers dangerous hike to save her stranded family is being called a christmas miracle. Marianne gaspard. I did it was her french name. Then she came to louisiana as a slave. I became curious where in africa she was from. So i took the ancestry dna test to find out more about my african roots. The ancestry dna results were really specific. 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Reporter from the warmth of her hospital bed, karen klein and her husband, eric, described how a christmas trip to the granddaughter canyon with their 10yearold son almost turned tragic when they hit bad weather. Major roads were closed and impassable. Reporter their g. P. S. Showed an alternative down an unpaved road. Then it became a little more harried. The car got stuck in the stuck in the mud. Reporter karen, 46, a fitness enthuse aft who had grown up camping and hiking, set off alone, searching for cell service to call for help. It really didnt feel like there was a point of no return until it started to snow, it was night time, and karen was not in the car any longer. Reporter afraid to sleep in freezing temperatures, karen hiked for 11 hours, often struggling through deep snow. Didnt have winter boots. My shoe had filled up with snow, and i couldnt put my shoe back on. Reporter by sunrise, with no sign of his wife, eric and his son hiked to