this morning on "world news now," targeting trump. the republican front-runner is digging in as the former nominee mitt romney gets ready for a face-off. is this the establishment's last best shot of derailing the trump train? >> a violent confrontation caught on camera. a school police officer seen slapping and kicking a young man. but what's behind the video that's now ledded to baltimore chief's suspension. >> and new this half hour, a brave store clerk taking a stand. >> the incredible surveillance video showing a would be thief getting pummeled by the clerk that he's trying to rob. how she was able to fight him off. >> and could george clooney be calling it quits. why the actor says he has no intention of aging gracefully on the big

that's in "the skinny" on this thursday, march 3rd. from abc news, this is "world news now." >> many people who have seen "hail caesar" recently are like, thank you, george, for leaving. no, it's a good movie. good morning to you on this friday eve. thursday morning. i'm kendis gibson. >> and i'm reena ninan. ttle to take down donald the trump. gop leaders uniting to break the winning streak after a super tuesday blowout. >> trump has released some details of his health care plan ahead of tonight's debate. it's mostly in line with the republican philosophy. but today, former gop nominee mitt romney is leading the charge against trump. abc's tom llamas has the latest from the campaign trail. >> reporter: the candidate dividing the republican party as never before, now pledging to bring it together. >> i'm a unifier. i know people are going to find that a little bit hard to believe. but believe me, i am a unifier. once we get all of this finished, i'm going to go after one person. that's hillary clinton. >> reporter: but if donald trump expects the gop to fall in line,

he's got another think coming. >> usually, when you're the front-runner, everyone is saying, please, everyone, get out of the race, so we can unify around the front-runner.r. what people are saying now is, please, everyone get together so we can keep this front-runner from winning and destroying the republican party. >> reporter: senator marco rubio, fired up in michigan after casting an early vote in florida with his wife, jeanette. i asked him if it's too little, too late. you're 1-15. how can you tell your supporters that you're still viable? >> well, i think they see the path forward. they see the delegate count. we're picking up delegates. we continue to gain delegates throughout the day as the count is coming in. on a night that wasn't supposed to be our strongest night. >> reporter: in a series of tweets, trump saying lightweight rubio lost big, calling his campaign desperate and angry. and rubio now splitting the anti-trump vote with a newly energized senator ted cruz. >> thank you, texas! >> reporter: who is calling on the other candidates to get behind him, as the trump alternative. >> i ask you to prayerfully consider our cominto

uniting. >> reporter: right now, that's not happening. which is why top republicans are sharpening their knives in a last ditch effort to stop trump. mitt romney delivering a major speech laying out the case against the billionaire. piling on? a slew of top republican donors and conservative groups, planning to blanket the air waves with anti-trump ads. >> trump picks on workers and widows. he won't do a thing to china and mexico. >> reporter: on super tuesday, trump in his palatial palm beach golf club watching election returns. his campaign juggernaut rolling on and over his opponents. dr. ben carson indicating he'll soon drop out. right now, the only establishment name in trump's corner, new jersey governor chris christie. so many people examining his face standing behind the billionaire. six new jersey papers calling on christie to resign, writing, "we're fed up with governor chris christie's arrogance. we're disgusted with his endorsement of donald trump.

utter disgrace." donald trump, brushing it all off, setting his sights on hillary clinton. >> she wants to make america whole again. and i'm trying to figure out what is that all about? make america great again is going to be much better than making america whole again. but what many people are talking about, what many people are watching, donald trump will be face to face with one of his biggest enemies. fox news's megyn kelly. they had the war of words in the first debate of this campaign season. tom llamas, abc news, shelby township, michigan. >> let's talk about the mocrats because super tuesday also pushed hillary clinton a big step closer to the democratic nomination and she has a lot of star power on her side. elton john performed at a fund-raiser concert for clinton last night at radio city music hall in new york city. katy perry belted out a string of hits include "roar." and there were appearances by singer andrew day, jamie

jew julianne moore. tickets went for as much as $2700. it's not clear though how much money they raised last night. bernie sanders is also raking in a steady stream of donations. mostly from small money contributors. referring to his four wins on super tuesday, sanders said he had an extraordinary night. he told a raucous crowd in portland, maine, that hillary clinton is not so inevitable and he said since the pundits are call cag the nomination for clinton, that means he will probably win by a landslide. >> turning overseas, breaking news about north korea. the communist country firing off at least six short-range missiles this morning. those launches came just hours after the u.n. security council approved the toughest sanctions against north korea in two decades. the new sanctions are in response to the north's recent nuclear tests and a long-range rocket launch. u.s. special operations forces can toured their first significant isis operative. an american official confirms that the detainee is now being interrogated at a temporary detention facility in northern iraq.

debris that washed up in africa appears to be from a boeing triple 7 and that's the same type of jet as missing malaysia airlines flight 370. we've learned an american says that he found it. seattle resident blaine gibson says he chartered a boat to search a remote sandbar for possible debris. he's made similar searches in other parts of the world another part from the missing plane was found last july. flight 370 vanished nearly two years ago. back here at home, police in oklahoma city say it's too early to tell if the death of a natural gas industry heavyweight was intentional. 56-year-old aubrey mcclendon was killed in a fiery single car crash. his suv islam slammed into a concrete bridge embankment, that was yesterday morning at more than 50 miles an hour. mcclendon was not wearing a seat belt. his death came one day after he was indicted by a federal grand jury for allegedly conspireing to rig bids pore oil and natural gas leases.

mcclendon denied wrongdoing in the case. starting next month, passengers will no longer be able to vape while flying. the transportation department announced yesterday the use of electronic cigarettes on airplanes will be banned. the transportation secretary said the new rule will protect passengers from unwanted fumes. safety experts had also expressed concerns about explosions caused by the batteries in e-cigarettes. not going to let me take my makeup remover that's more than eight ounces but you can -- >> apparently you can still vape now. >> who knew. new video just in showing a very determined clerk in georgia fighting off an armed robber. take a look at the 17-year-old suspect pointing a gun directly at the clerk demanding money. but she's not having any of it. grabs the gun, tries to wrestle it and slams the guy in the head with the cash register drawer. then she brought out the hammer that sent the would be burglar running away. look at her. >> don't do that. >> whoa. i know they say don't do that. whoa, whoa.

that is just terrifying because he pointed the gun right at her several times. >> it's not worth it. >> no. i know that's the right -- yeah. >> i don't know about that move. astronaut scott kelly back in the u.s. this morning after spending nearly a year in orbit aboard the international space station. >> kelly landed in houston overnight and among the welcoming party was his twin brother mark, a former astronaut himself as well as dr. jill biden and she happened 0 bring mark some much deserved beer and apple pie. here's abc's david kerley with more. >> scott kelly is back in houston. what a trip it's been. several years ago he led me get inside of this capsule here in houston. it is very tight. that's why he was so happy when they got on the ground in sca dak stan. it is very tight in there. that's why he was so happy when they got on the ground. you heard him talking about breathing in the frigid air. he says it's so fresh. was very happy to be on the ground. a record 340 days in space.

flight for an american. and how this for scott kelly, a party of medical tests comparing him to his twin brother mark. a former astronaut. mark's been the baseline on earth for those 340 days. now we learn about bone density loss, muscle loss, radiation effect, eyesight, all these things that may have happened during this long flight. of course, this is science. this is all aimed at figuring out whether humans can go to mars in essence, scott kelly one of the first lab rats. he's home tonight celebrating with friends and family. >> yeah, they used to be the same height. apparently scott's two inches taller. >> scott's spent more time in space than any other human. coming up, tale of the tape. the college students who claimed they were the victims of an attack on a bus. new video shows they might not be as innocent as they say they are. and the giant piece of real estate sold by a celebrity to be used as a nursing home. can you guess who unloaded this megabode? you're watching "world news

that lasts for twelve hours? try delsym® twelve hour cough liquid. its advanced formula releases powerful medicine that acts fast while its extended release medicine lasts for 12 hours. try delsym®.

it collects leaving gross germ-ridden stains. clorox toilet bowl cleaner with bleach is no match for that. but lysol power toilet bowl cleaner eliminates mineral build-up effortlessly and kills 99.9% of germs. to get your toilet truly clean, why choose anything other than the power of lysol? and to keep it that way for up to 4 weeks try lysol automatic toilet bowl cleaner. do you think i'm gonna crack under pressure or conquer the field? defy expectations any day with always infinity. made with flexfoam. absorbs 10x its weight. rewrite the rules. always.

narrator: breakfast. dishes. dinner. dishes. marriage. dishes. divorce. dishes. sleeping. (snoring) (sputtering) dishes. not sleeping. dishes. life. dishes. death. dishes. existence. dishes. dishes, dishes, dishes... every dish, every time. only finish has the power ball to take on anything. i'm gonna take mucinex sinus-max. enough pressure in here for ya? too late, we're about to take off.

and you're coming with me... you realize i have gold status? mucinex sinus-max liquid gels. dissolves fast to unleash max strength medicine. let's end this. ♪ welcome back. a criminal investigation is under way in baltimore to get to the bottom of an ugly incident caught on camera. a city school police officer is seen slapping and then kicking a teenager on the steps of a high school while another officer looks on. police say the teen was not a student at the school. but the boy's family and their attorneys say he is. the officer involved is now on administti

also caught on camera, this incident from a high school in nashville. a student assaulting a teacher in the hallway. witnesses said that the 17-year-old student attacked the teacher without provocation. the teen later tried to flee the scene. he's facing assault and other charges. >> this is our america's greatest home video block. because we have another surveillance video. one is playing a major role in the case of three female college students who claimed to have been victims of racially motivated attack on a city bus in albany, new york. >> the story of the attack ignited a national uproar. new video shows a different story. here's abc's gio benitez. >> reporter: three students under fire for what's seen in this surveillance video. >> i'd like to report the fact that me and my friends were just jumped on a bus for being black. >> just after 1:00 a.m., ariel agudio, alexis briggs, and asha burwell, all 20-year-old college students at the university of albany claiming they were the only black students on a city

bus when they were called racial slurs and hit by several boys. surrounded by white students and feeling threatened, they fought back. two of the girls called 911. >> it was a racially fueled time. we were three black girls shoved jumped by like 20 white people. >> reporter: the university and city officially launching an investigation, leading to the release of this video. surveillance from inside the bus that night. >> it definitely looks like it wasn't what the girls said it was that happened. >> reporter: this week all lee girls in court pleading not guilty to charges of third degree assault. burwell and agudio also charged with falsely reporting an accident. and the videos alone don't make clear exactly what happened or even what triggered that fight. but police are now trying to enhance the audio on those videos to try to figure it all out. gio benitez, abc news, albany, new york. > gio will have more on that on gma a little bit later on

when we come back, are george clooney's days numbered in front of the camera? >> and rapper 50 cent finally finds a buyer for his 21-room mansion. wait until you hear what it's being turned into. "the skinny" is next. 21-room mansion. "the skinny" is next.

♪ skinny, so skinny

>> time now for "the skinny" and topping our headlines this morning, george clooney propsing never to age on the big screen. >> the actor while doing a promotional tour for his latest movie "hail caesar" told the bbc that he has no intention of growing old in front of the camera. >> i think nobody really wants to see anybody really age. you know, it's a very unforgiving thing, the camera is. so aging becomes something that you know, you try to do less and less on screen you know, you try to pick the films that work best for you. >> you know some would say at least he has an option. most women in hollywood don't have that option to say i'm not going to. it's hard for roles. but he's gorgeous. come on, clooney. clooney says his great love is actually directing and that it's much, much more fun and infin in italy more fun to be directing. i can see that. i bet he'll be a great director to work with. >> a lot of actors

that's why the morgan freeman is still acting in his 70s. taking center stage at the south by southwest event in austin, texas, the president and first lady. >> the obamas have been announced as key note speakers for this year's festival on film, interactive media and music. next friday, president obama will appear as part of the keynote conversation about civic engagement. on the 16th, michelle obama will be the opening keynote at south by southwest music discussing her, let girls learn initiative. two good points to talk about there. >> yeah, but it's south by southwest. this is a big deal. this marks the first time in the 30-year history of south by southwest that a sitting president and first lady have participated in the event. and the white house is saying the president and first lady also plan to go to burning man this september. >> i hope they're bringing the girls. i think it will be fun. south by southwest. not burning man. next up to the latest item that's got hollywood buzzing. katy perry and orlando bloom. >> they've been trying to keep their relationship under wraps but no

item. their vacation last week in hawaii. >> if they settle down together, hollywood might be able to finally breathe a sigh of relief as both the man eater and heartbreaker have torn through much of the greater los angeles area together. so we say they're busy. perry's list of exes runs from john mayer and robert aykroyd to johnny lewis and ex-husband russell brand, or course. >> as for bloom, his list is just as impressive. from former ex-wife miranda kerr and siena miller, rumors of lindsay lohan, liv tyler and selena gomez and who else. >> many more. of course, we now wish the happy couple the best of luck. >> can we let them just hang out and get to know each other? leave them alone. next to a conceivably happier and much richer 50 cent. >> not 509 cents. just want to correct you on th

after languishing on and off the market for nine years and 18.5 billion dollars, the rapper has sold this. it's an obscenely oversized 50,000 square foot mansion in connecticut reportedly for the undersized price, how much would you pay for this? look at it. how much would you pay. >> i would have gone for $18 million. >> if you had it? you would have paid $10 million over. this is only $8 million. >> steal. okay. the house has 52 rooms, 21 bedrooms, 25 bathrooms, nine kitchens, indoor and outdoor pools, helicopter pad, a casino, nightclub not sure if there's a pole and basketball courts and it costs $70,000 a month to maintain. >> who would want all of this? apparently no one. the buyer is turning it into an assisted living facility. we kid you not. what are they going to do with the helicopter pad. >> boy, very cool. finally to a much smaller but fuller house. >> just days after netflix released the "full house" revival series in its entirety, variety reports that the streaming giant has now re

"fuller house" for a second season. >> they're coming back. >> congratulations. >> a lot of people were bingeing on the shows. >> we'd love to see the twins. but lysol power toilet bowl cleaner eliminates mineral build-up effortlessly and kills 99.9% of germs. to get your toilet truly clean, why choose anything other than the power of lysol? and to keep it that way for up to 4 weeks try lysol automatic toilet bowl cleaner. i'm gonna take mucinex sinus-max. enough pressure in here for ya? too late, we're about to take off. these dissolve fast. they're new liquid gels. and you're coming with me... you realize i have gold status? mucinex sinus-max liquid gels. dissolves fast to unleash max strength medicine. let's end this. it's easy for me cause look at as it is her.him... aw... so we use k-y ultragel. it enhances my body's natural moisture

and when i know she's feeling like that, it makes me feel like we're both... when she enjoys it, we enjoy it even more. and i enjoy it. feel the difference with k-y ultragel. garden party for her birthday. a fabulous so i mowed the lawn, put up all the decorations. i thought i got everything. almost everything! you know, 1 in 10 houses could get hit by a septic disaster, and a bill of up to $13,000. but for only $7 a month, rid-x is scientifically proven to break down waste, helping you avoid a septic disaster. rid-x. the #1 brand used by septic professionals in their own tanks. that lasts for twelve hours? try delsym® twelve hour cough liquid. its advanced formula releases powerful medicine that acts fast

ase medicine lasts for 12 hours. try delsym®. amy son and i used to watch the medred carpet shows on tvrs. now, i'm walking them. life is unpredictable being flake free isn't. because i have used head and shoulders for 20 years. used regularly, it removes up to 100% of flakes keeping you protected live flake free for life narrator: breakfast. dishes. dinner. dishes. marriage. dishes. divorce. dishes. sleeping. (snoring) (sputtering) dishes. not sleeping. dishes. life. dishes. death. dishes. existence. dishes. dishes, dishes, dishes... every dish, every time. only finish has the power ball to take on anything.

♪ okay. it's a challenge to all parents. the arduous process of baby proofing the home trying to anticipate every possible danger before it turns into an accident. >> it really is tough. but even seasoned parents may be shocked to learn how many dangers are still hidden in their homes around nearly every corner. here's abc's dr. richard besser. >> reporter: 15-month-old jagger. this little guy with the big hair makes it his mission to get into things. all day. every day. >> the cabinet, the dishwasher, the toilet. he'll try to climb into the tub. >> reporter: erin and her husband have all the proper safety locks to keep him out of e

what would happen? >> our house would be a disaster because everything would be in the middle of it. >> reporter: we took the child locks off the kitchen cabinets. outfitted jagger with a gopro and let him roam free. look what happens. he quickly gets into the cabinets and drawers. he even emptied the fridge with a little help. but there are things he can get into by himself. one big danger, an unsecured dishwasher >> this is like a playground for him. >> this is his favorite playground. >> took him about three seconds to get into there. >> reporter: the dishwasher door can bump a child's head. it provides easy access to sharp knives and detergent can be dangerous. dish wash area detergent packets look similar to those laundry packed which resemble candy and have injured hundreds of children. another home danger, batteries. >> that guy. >> not to the mouth. that's what the little ones do. >> yep. >> reporter: 20,000 button battery ingestions between 1997 and 2010. tiny lithium batteries that when

swallowed get stuck in the throat. saliva triggers a chemical reaction that can burn the esophagus. make sure batteries are locked up where a child can't get to them. something else surprising, mouth wash. >> inactive ingredient alcohol 21%. so that's 40 proof. >> that's a lot of the alcohol. >> reporter: alcohol found in mouth wash and hand sanitizers can cause alcohol poisoning. so keeping these out of the reach of your child can save your little one's life ensuring that little people like jagger can continue to destroy cabinets for many years to come. dr. richard besser, abc news, new york. >> when we were growing up, my parents didn't safety proof, there was no latches, nothing. >> do you still discover dangerous spots with your kids? >> usually it's my husband's cooking. at this point. >> oh. man, that was scary. i'm not having kids. >> that's all it took.

making news in america this morning, breaking right now, back in the usa following a year in space, astronaut scott kelly landing in houston overnight greeted by his family. what he said moments ago. republican rivalry, a new feud involving donald trump. former presidential candidate mitt romney kicking off an anti-trump effort today. the billionaire already firing back. a hole in the windshield. a driver shaken up. terrifying moments on a highway. and backyard surprise. a nine-foot alligator caught taking a swim. good thursday morning, everyone. we're going to start with that incredible homecoming overnight. 340 days in