welcome to "world news tonight." and the breaking news. the fbi wants your help this evening. is this man american? he appears in the isis videos and authorities want you to listen to his voice. the tape right here. also, coming in right now, the new or the the nay doe pictures. reports of twisters, millions in the past of severe weather tonight. ginger zee is right here. the drills. american hospitals preparing for pobt ebola patients. dr. besser is there for it. caught on tape. the traffic stop over a seat belt? the mother saying "i'm scared" and this. the children recording it all and how police are explaining this tonight. and america strong. the boy now on the team. his legs dangling there. then called into the game. >> jp gibson has come into the game. >> the play in the nba you don't

want to miss. and tonight, that little star, checking in with us. good evening and it's great to have you with us here on a tuesday night. and we begin with the breaking developments. the fbi in a very unusual move tonight, now asking for your help. they want to know if the man you're about to see in this video is american. federal authorities asking everyone to look and listen to this man, wearing a mask in an isis video. this is someone else who they have noticed in those videos and here is his voice tonight. >> we're here in the 17th division military base just outside the city of raqqa. >> reporter: there is a global hunt this evening to find him and to figure out if he's from the u.s. and we begin here with abc's pierre thomas with the crucial tape. >> this is the end that they face. >> reporter: in a chilling isis propaganda video, this fighter in a black mask speaks as men dig a ditch in the background. he's presiding over their

execution. >> you can see them now digging their own graves in the very place where they are stationed. >> reporter: he's speaking perfect english. and the fbi believes the accent is north american, meaning he could be from the u.s. they want to know if you know who he is. "we're hoping that someone might recognize this individual and provide us with key pieces of information," the fbi website says. "no piece of information is too small." sources say the fbi needs the public's help, even as it uses computers to develop a composite of the face behind the mask. >> we turn our guns towards the muslims. >> reporter: and they are secretly approaching informants worldwide to see if they know his voice. the concern, sources say, this man must be identified in case they try to return to the u.s. the fbi director told me just how urgent his concern is about foreign fighters, including americans, flowing into syria. >> the civil war there is offering an opportunity for thousands of foreign fighters to

flow in and get training in the worst arts of terrorism. and then they're coming back to europe, they're coming back to north america chlgt and it's something that all of us in the counterterrorism business are worried about every day. >> reporter: why the urgency? sources told me today, a man participating in a mass execution might do anything. david? >> pierre thomas live in washington leading us off. pierre, thank you. and in this fight against terror, another major development tonight. you'll remember that al qaeda linked group plotting against america. reportedly planning the next 9/11-type attack on the u.s., targeted by u.s. air strikes over syria. tonight, an abc news exclusive. was that plot truly foiled? abc's chief global affairs correspondent martha raddatz, one-on-one with america's top military leader, the chairman of the joint chiefs of staff, asking, did those air strikes succeed? >> reporter: is the immediate threat in some of those plans they were making, was that disrupted? >> i think it's absolutely safe to say disrupted. but the, you know, the unknown

is for how long. their aspiration to conduct attacks in europe and the united states and elsewhere in the region remains an aspiration. i don't know how significantly they were disrupted. >> i want to bring in martha don't. general dempsey seemed very careful there. the group is disrupted, but still want to attack america. >> reporter: it seems that way, david. the chairman told me they got one sere your leader of the terror group for sure. but they are not certain about the man in charge of operatios.s the chairman said they are hopeful, because he's not been prominent on the air waves, and that probably includes cell phone communication since that first round of air strikes in syria. the chairman also said these groups including isis are changing their tactics, taking down black flags, breaking up their convoys and blending into the population, and that is making it harder to target the groups, david. >> all right, martha raddatz, thank you. now, to the pictures coming

in at this hour, the severe wetter. the fast-moving storms and the n tornado watch up right now. this image from kentucky. and this picture from georgia. look at this. a neighborhood hit bill a tornado overnight. on the left, one house untouched. on the right, the house just across the street, severely damaged. pounding hail with this system, bringing heavy rain and powerful winds. let's get to ginger zee tracking it all for us tonight. jing earl? >> reporter: david, we have many more severe weather reports to come. something we call a low-level jet is fueling all this. it's right down at the edge of the surface and along that cold front, we've got enough shear, as we call it, to spin in the atmosphere. therefore, tornado watch in place. we're also watching a storm in the pacific. the rest of simon. the moils sure that will fuel potential flash flooding in the southwest, especially arizona, we're watching, tonight into tomorrow. and then as we go through the end of the week, check that out, some of the numbers. two-plus inches right through

central missouri. >> all right, ginger zee, thank you. there are major developments tonight in the effort to protect america from ebola. the pentagon saying today that up to 4,000 american troops will now need to spend about a year in west africa to contain the outbreak. meantime, in dallas tonight, the ebola patient on a ventilator, showing tiny signs of improvement, we're told. the second patient, the tv photographer who approved in nebraska, able to get on that stretcher himself, right therein the middle tonight, treated by that experimental drug. we noticed this map. 10 natch million tweets around the world in just three weeks time, all concern or questions about ebola. tonight, dr. richard besser inside a hospital drill, so many of you asking, what's being done after that breakdown in dallas, after that patient was sent home the first time he showed up. and what about that patient tonight? let's get right to cecilia vega, live in dallas. see seal y'all? >> reporter: david, good evening to you. thomas eric duncan is receiving

that experimental drug. his family says he is showing some signs of improvement, including now having a normal body temperature. bull he is still here, in critical condition. tonight, as thomas eric duncan fights for his life, outside this dallas hospital, his mother is speaking out. >> i just want to see my son be all right, to be healthy. >> reporter: and now, new questions about whether western hospitals are ready to handle infected patients. >> the enemy here is a virus. the enemy is ebola. >> reporter: new concerns tonight after a nurse in a spanish hospital became infected while cleaning a missionary who died from ebola. she is the first person to contract the disease outside west africa. now, hospitals around this country are on high alert. our dr. besser in one new jersey e.r., where staffers are running preparedness drills. >> ebola patient in five minutes. >> so, they just got a fake call

in and they're going through a drill as if this patient coming in had ebola. they're putting on full body protective suits. they're reducing the chances that if the patient had ebola either of them would get sick. there's no way that this patient wrapped this way is going to contaminate anyone in the emergency room or contaminate the health care workers. >> recent travel? >> i was to liberia. >> so they asked him the right questions, where he'd been, what his symptoms are. if you're going to pick up a patient who has ebola, those are the things you really need to do. >> reporter: doctors saying what happened in dallas was a real wakeup call. the doctors, nurses and paramedics who treated duncan at this hospital are also at risk of getting sick. they are being closely monitored. the good news, david, tonight, no signs of any symptoms. >> all right, cecilia, thank you tonight. dr. richard besser, back from that drill. this is a big question. we saw what happened in dallas, the patient turned away the first time he went. was there anything encouraging

that you saw today? >> reporter: there was. i'll remember the look in the eyes of the doctor when he said it was a wakeup call. he said they're drilling to the next patient who walks in with ebola, they're not going to miss it. >> doctors and nurmss at the ready. rich, thank you. we're going to turn now to alarming images and claims of excessive force tonight in indiana, erupting during a routine traffic stop over a seat belt. all of it caught on camera by children in the backseat. abc's steve osunsami on the case tonight. >> reporter: caught on tape. a family of four -- >> are you going to open the door? >> reporter: on their way to see a dying mother stopped by police. >> oh [ bleep ]. >> reporter: the officers with the heavy tool and the stun gun and today in a statement, admit this all started with an alleged seat belt violation. >> all of my windows is up. i feel like my life is in danger. >> reporter: lisa mahone is on the phone with 911 and hands the officer her license, but now they're demanding identification from her passenger, jamal jones.

his only i.d. is a traffic citation and when he reaches for it, police say in their statement that officers become concerned for their safety. >> i was scared from the beginning. >> reporter: the frightened family refuses to open the vehicle. >> oh, [ bleep ]. >> felt like my civil rights was just thrown out the window. along with my body. >> reporter: according to police, they were at all times acting in the interest of officer safety. bull li but they have been sued for excessive force before. look closely. the needle from the stun gun is still stuck in jones' back. >> take it off! i told y'all my kids are in the car, man. >> reporter: jones compares what happened to the shooting death of michael brown in missouri. since the unarmed teenager was killed, plenty of very reasonable african-american families have become more afraid of police interaction. >> get out of the car! get out of the car! >> reporter: in south carolina last month, this man was just reaching for his wallet. >> oh! >> reporter: and this was tallahassee, just last week.

hammond police deny any wrongdoing in this case and in each of the others, which they quietly settled for undisclosed amounts. david? >> steve osunsami tonight. steve, thank you. and now to a headline about high school sports in this country. we learned today that some former high school state champions will not be playing football this season. the team from new jersey, players akulgzed of hazing. they've ended the season after a call to police. abc's linsey davis asking the question, is this playing out in locker rooms across the country? >> reporter: tonight, students from football powerhouse sayreville high school, still trying to come to terms with the superintendent's controversial decision to cancel the rest of the football season. >> there were incidences of harassment, intimidation and bullying that took place on a pervasive level. >> reporter: the new jersey high school rocked by allegations of hazing, some sexual in nature. some students here, shocked by the repercussions. >> they work hard all summer,

and then all of a sudden, they wake up one day and they're like, you can't even play football. it's just a shock to them. >> reporter: investigators are interviewing parents, players and school staff, not just looking into the conduct itself but whether it was known and ignored. when asked for comment from nj.com today -- >> are the rumors true, george? hazing incidents involving your football team? >> reporter: the football coach remained tight lipped. a fall from grace from sayerville which has a proud football tradition, winning three state championships in the past four years. studying suggest about 1.5 million high school students have been subjected to some form of hazing. one found nearly half of students in group activities were victims. here in sayreville, this will be no friday night lights this week, which was supposed to be homecoming. while the investigation continues to see just how widespread this was on the team, the implications of a canceled season are far reaching. there is now concern about what it will mean for seniors with

pending college scholarships, david. >> all right, thank you, linsey. zb we now move to stunning new individuvideo of drivers encour use hands free technology. bull is that a distraction, as well? watch this tonight. here's abc's clayton sandell. >> reporter: they are designed to help prevent this -- but a new aaa study finds some of those hands free voice activated systems meant to cut down on distracted driving, may actually be doing the opposite. >> the problem is that some of these voice-based technologies are stealing attention from the driver so that they're actually now engaged in that voice-based technology and not paying attention to the road. >> reporter: to test the systems, drivers strapped on gadgets to monitor heart rates and reaction times. then hit the road. >> play a cd. >> tuning to a.m. 850. >> oh heavens, this is not the right command. >> reporter: what researchers

found is that drivers become more distracted when voice-activated systems just don't get it. kind of like this. call david muir. >> i different understand you. please try again. >> reporter: one system had a driver so distracted, it led to this. >> ah, the car! >> reporter: the auto industry argues the study does not link hands free systems to more accidents, but experts tonight warn that drivers need to keep their eyes on the road and hands on the wheel when it's the technology that crashes. >> please say a command. >> call john doe. >> calling donna at home. >> not donna, no. >> reporter: clayton sandell, abc news, denver. >> clayton, thank you. and there is still much more ahead on wonad on "world news t this tuesday. watch this. the crash on the rail road tracks. so many stunned. no one hurt right there. our team at rail road crossings across this country. and what they've discovered tonight. also, the new view coming in from one of the world's most famous landmarks.

we'll take you right up in the eiffel tower tonight. and then watch this. the 5-year-old basketball star right here in america, signing his contract in crayon. his feet dangling off the bench there, then taking the court with his favorite team. you're about to see how this play plays out. you don't want to miss this. nexium to patients just like you. for many, prescription nexium helps heal acid-related erosions in the lining of the esophagus. there is risk of bone fracture and low magnesium levels. side effects may include headache, abdominal pain, and diarrhea. if you have persistent diarrhea, contact your doctor right away. other serious stomach conditions may exist. avoid if you take clopidogrel. nexium 40 mg is only available by prescription. talk to your doctor. for free home delivery, enroll in nexium direct today. i have $40,ney do you have in your pocket right now? $21. could something that small make an impact on something as big as your retirement? i don't think so. well if you start putting that towards your retirement every week and let it grow over time,

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we're going to turn now to those images coming from louisiana tonight. a train colliding with a truck. 2,000 collisions a year on the tracks. and tonight here, abc's deborah roberts discovers something with those tracks and perhaps the signs. can you actually see? >> reporter: a jaw-dropping moment in rural louisiana. a union pacific railroad freight train plowing into an 18-wheeler caught on the tracks, the driver scrambling to safety seconds before. this video captured by a couple just yards away. >> oh, gosh. look at that smoke. >> reporter: the train conductor and engineer were injured, but amazingly, no one died. police tell abc news that the railroad signals appeared to be

working. it's a scene that plays out across the country all too often. last year, there were roughly 2,000 train/vehicle collisions, resulting in close to 250 deaths and nearly 1,000 injuries. some, because of drivers taking risks. like this one in houston. and this in florida, where the driver barely escapes. the engineer tries his best to stop, but it can take up to a mile for a speeding train to screech to a halt. in many cases, the driver is not to blame. only 35% of railroad crossings have flashing lights and gates. denny and vicky moore's 17-year-old son ryan was killed at this crossing in ohio. >> as you can see, you've got all this vegetation and all these trees blocking the driver's view. and you're not required to stop at this crossing. >> reporter: right. because it only says yield. >> our contention has always been, how can you yield to something that you can't see? >> reporter: these accidents are a frightening reminder to all of us that you have to be vigilant.

one expert told us that a train hitting a car is like a car hitting a soda can. david, experts say, you have to approach every train crossing ass if there could be a speeding train coming. >> how can you yield if you can't see it coming? >> reporter: that's right. >> deborah, thank you. when we come back here tonight, the new view from inside the eiffel tower and we will take you right up inside. and then jennifer lawrence tonight, breaking her silence about those personal pictures stolen. what she's saying about the people who hack them. they call it planning for retirement because getting there requires exactly that. a plan for what you want your future to look like. for more than 145 years, pacific life has been providing solutions to help individuals like you achieve long-term financial security. bring your vision for the future to life with pacific life. talk to a financial advisor to help build and protect your retirement income. pacific life. the power to help you succeed. this is kathleen. setting up the perfect wedding day begins with arthritis pain and two pills.

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our "instant index" tonight. and new words from oscar winner jennifer lawrence about those who hacked into her personal photos and distributed them online. in an upcoming "vanity fair" profile, she says, it is not a scandal, it is a sex crime. a sexual violation. anybody that looked at those pictures, you're perpetrating a sexual offense. you should cower with shame. by the way, the fbi is still investigating the case. we move on now to the eiffel tower tonight. and a renovation just opened, glass floors and panels on the sides, angled out so you can look down, not for those afraid

of heights, but for those that want to see paris in a new way. and now a street fight speeding around the internet. two kangaroos on their tails caught in a fight on camera. we did some reading after the pictures surfaced today. the experts say it's normal for male kangaroos to box this time of year. it is mating season. when we come back here on a tuesday night, basketball's newest star in this country. the pint-sized rookie, coming off the bench, about to steal the show. you'll see why. and he's right here with us tonight. he is america strong. [ female announcer ] we lowered her fever. you raise her spirits. we tackled your shoulder pain. you make him rookie of the year. we took care of your cold symptoms. you take him on an adventure. tylenol® has been the number 1 doctor recommended brand of pain reliever for over 20 years.

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it's rare nba stars sign a contract in crayon, but you're about to meet one, as we team with abc 4 in salt lake city. here's how our team started their report. >> the newest member of the utah jazz, jp gibson. >> reporter: he's just 5. >> what he lacks in age, height and experience, he more than makes up for in heart. right? >> yeah. >> reporter: and just look. his sister waving there. there goes her brother, crayon in hand, signing his contract. and there it was, his green jersey. jp gibson was diagnosed with lee

keep ya when e he was just 2 1/2. this image of him from the anything can be project, helping his dream of basketball come true. >> he's been fighting cancer longer than he has not been in his little life. >> reporter: now he's fighting for the utah jazz. his feet dangling there above the court. there he goes, number 1. his hands on his hips. big game. and look at this. before the game, the stretch. and the rookie dance-off. just listen to the fans. >> chemo damages their joints. we didn't think he'd be able to run. to see him on the court, i don't think there are words to express, i mean -- we are so grateful. so -- >> reporter: grateful for that moment for their son. >> oh, wait a second. we have a sub coming into the game. >> reporter: just listen to the announcer. >> jp gibson has come into the game. >> reporter: there goes number 1. and he's about to prove why he's america strong. they pass him the ball. >> inbound to jp. working through the big man.

he slides by -- he rises to the rim and hammers! jp gibson with the two-hand flush! >> reporter: the two-hand flush and his big postgame interview today with all of us in the news room. he showed us his form, his move for that dunk and his jersey. he's proud of that, too. mom and dad, were they nervous? >> i knew he was going to go down and score. he's very confident in his skills. >> reporter: we have a lot of fans here now for the utah jazz since you started playing with the team. can you see all those people? and the wave back from the biggest star in salt lake city tonight. we love jp. and we'll see you right back here tomorrow night. good night. ññññññññññññññññññññññññññññññññ

this is "jeopardy!" today's contestants are -- a police offer from chicago, illinois... a lawyer from rockville, maryland... and our returning champion, a social-media editor from new york, new york...