this is "nightline." >> tonight, breaking news. the international manhunt for the so-called affluenza teen is now over. ethan couch, infamous for killing four people in a drunk driving accident then bypassing jail time with only probation and time in rehab, after his so-called affluenza defense, now found in mexico. what will be his fate this time? deadly consequences. after another police shooting results in the deaths of a college student and grandmother in chicago, prompting public outrage in a city already on edge. >> why you got to shoot first and ask questions later?

training have prevented tragedy? tonight meet the police officers in a specialized mental health squad. how their new approach could revolutionize how police respond to calls involving the mentally ill. hoverboard havoc. new warnings about this wildly popular holiday gift. not just a risk of fire but how some are blooding their way into the emergency room. but first the "nightline 5." >> i'm right here. you hear me? you fight. you don't give up. as long as you got a breath in you. "the revenant," rated r.

good evening. thank you for joining us. breaking news as we come on the air tonight. the international manhunt for the so-called affluenza teen has now come to a close. he is the rich and privileged teenager who killed four in a drunk driving accident and got off with only probation and time in a rehab center after his affluenza defense. authorities now confirming to abc news tonight that ethan couch and his mother were detained and are now in mexico in custody. >> there's four, five kids, kids laying in ditches and street. >> ethan couch pled guilty to killing four in a drunk driving crash in 2013. his infamous defense sparking nationwide outrage. >> affluenza. >> affluenza. >> the lawyer told judge boyd he was so rich he didn't know right from wrong. probation.

surfaced of couch allegedly playing beer pong, possibly violating the terms set by the judge. >> once that video came out that they felt like that a probation violation could be coming. >> he failed to check in with his probation officer. his mother tanya couch also mysteriously vanished. >> in my opinion he belongs in big boy jail. he belongs in adult prison. >> tonight he's reportedly back in handcuffs. there's no word what his defense will be this time. we'll have the latest details tomorrow morning on gma. now we turn to chicago. after another call to police turns deadly. a city demanding justice and answers. tonight perhaps a lesson to learn from another american city, san antonio. we were on the streets with two remarkable officers using new tactics to save lives. their department's on a mission to change the way law enforcement interacts with the mentally ill. >> reporter: death and disbelief.

struck again this weekend. >> two people shot, were shots fired by police just to confirm? >> yes, they were. >> reporter: police opened fire responding to a domestic disturbance. 19-year-old quintonio allegedly threatening his father with a baseball bat. >> on arrival they were threatened by an individual -- >> reporter: he was shot seven times. >> i went to the hospital. my son has seven bullet wounds in him. that's too much. >> reporter: janet cooksy says her son was a good kid, a good student with big dreams. he also battled mental health. >> he was having a mental situation. sometimes he'll get a little loud. but not violent. >> reporter: caught in the crossfire was a neighbor, 55-year-old betty jones. >> why you got to shoot first and ask questions later? it's ridiculous! >> reporter: nationwide, fatal

often. >> dallas 911, what's your emergency? >> my son needs to be taken to parkland, he's bipolar trained police officers. >> okay. >> reporter: this body cam video shows two dallas police officers responding to a 911 call about a bipolar schizophrenic man off his meds. we have to warn you, what happens next is hard to watch. 38-year-old jason harrison comes to the door. notice the screwdriver in his hand. drop it! drop it! >> oh! they killed my child! oh, they killed my child! >> shots fired. >> reporter: eight seconds after he came to the door, harrison lay dieing in his mother's driveway. shot five times.

>> the morgue got called. >> reporter: the officers insist they had no other choice. >> they could have tasered him or something. they didn't have to come out straight fiftieth the deadly force. >> reporter: a grand jury declined to indict. the harrison family is now suing the officers and the city of dallas, who have sought to dismiss the lawsuit, arguing use of force was reasonable under the circumstances. >> the training that these guys are lacking is what needs to be changed. >> reporter: jason harrison's name has now become one among many others. names like la val hall, done tray hamilton, james boyd, americans described by their families as mentally ill who have ended up on the wrong side of an officer's gun in what many even inside law enforcement are calling a crisis in american policing. >> this is the future of policing. >> reporter: just hours from where jason harrison was killed, a specialized team is working to revolutionize policing from within. they're san antonio's mental health unit.

she has depression. and that she's feeling suicidal. >> reporter: meet patron joe and ernie stevens. they respond to emotionally disturbed persons anywhere in the city. >> i promise you i'm not like any police officer that you've probably ever met. >> reporter: today it's a young woman who called 911 contemplating suicide. >> have you ever attempted suicide in the past? >> no. i don't even know how to do it. >> you don't have a plan right now? >> no. >> reporter: these officers are experts in what's called crisis intervention training. >> would you say that you really don't want to die but you want the pain to stop? >> yeah. >> okay, okay. >> i don't want to leave my kid. >> are you willing to get some help today? >> yeah. >> reporter: this woman agrees to get help. it's all part of a pioneering program where the mentally ill are diverted out of jails and into treatment. how is your approach different from the average cop, if you will? >> we're in plain clothes, unmarked car. we walk in, it's not i'm officer

i'm joe, this is ernie. we're here to help you. >> reporter: 15% to 20% of law enforcement agencies in the country have crisis intervention training programs. >> suicide, do you know if she's taken an overdose? >> reporter: ernie stevens says he helped start the one here in san antonio. >> that was the call i hated most. there's an individual at this house that has schizophrenia, that's hearing voices, he's talking about suicide. >> reporter: all that changed, officer stevens says, after he reluctantly attended a week-long crisis intervention training class and met a woman with a schizophrenic son. >> she said, one day one of you officers will have to come to me house and you might have to shoot and kill my son. i want you to know that's okay because i want you to go home safe to your family. we made a pact, asked the chief to start a mental health unit to help family members like her. >> reporter: according to a survey by the police executive research forum, new recruits typically spend 60 hours

eight hours learning strategies for handling the mentally ill. >> look at police academies. how close to they mimic military boot carps? but when you graduate you go to the streets. my 18-year-old daughter is wanting to kill herself. all of a sudden we've got to calm down. >> reporter: as a marine corps veteran he's battled ptsd. >> personal question, you ever >> i have. absolutely. and more than once. i don't shy away from the tough questions, byron. again, i hope that it will help somebody. >> when you go on these calls, you sometimes see yourself? >> a lot of the times i see myself. and that's what allows me to do what i feel like is a good job. >> reporter: this new approach may be saving lives and it certainly saves money for the city of san antonio. around $50 million in the past five years. >> do you feel she's suicidal? >> reporter: their specialized training is put to the test almost daily. >> a complainant asking for a

wife. she's a veteran. wounded warrior. she called him this morning and was crying and told him that she was in a lot of pain. he's unable to get ahold of her the past hour. he's at her house. he's banging on the door. no answer. scene. we could sense their heart rates rising. >> the police, are you okay? >> reporter: that's the victim's 911. >> is she breathing? >> reporter: all they can do is pace and pray. ernie and joe arrived in time. >> they had to kick the door to get inside. they found the woman unconscious. >> maintenance, can you coordinate, get them up here? she's unconscious, she's taken a lot of pills. >> we found her face down in her bathroom, empty pill bottles, at least seven. we tried to do what we could. we do have a faint pulse. >> my heart's broken for her. sad for the family.

>> you can see the emotional toll this takes on the officers. and they do this every day. >> i was struck how you kicked the door in having no idea what you might find inside. >> certain officers are going to see us as foolish. like you said, we don't know what's on the other side of that door. every possible call has the potential to turn violent. like i said, our mindset is always ready to go there if needed. >> reporter: the woman survived. ernie and joe likely saved her life. >> i saw two cops go in. i saw two human beings come out. >> reaction is that, byron, because of how you see it affect us. there's no way you can do this day in and day out and not have a human approach or respond with emotion. i don't think it's possible. >> reporter: back in chicago, the city is in turmoil. the officers involved in the shooting are on administrative duties, the department apologizing to betty jones'

the emmany battled mayor rahm emanuel calling for review how officers are trained to handle mental health cases for the families of lagriir and betty jones, it is too little, too late. next the refugees biking over the russian regional border in hopes for a new and better life. later, hoverboards. safety concerns you need to know about this wildly popular holiday gift item. i don't have to carry it around with me anymore. chantix made it possible for me to quit smoking. along with support, chantix (varenicline) is proven to help people quit smoking. chantix definitely helped reduce my urge to smoke. some people had changes in behavior, thinking or mood, hostility, agitation, depressed mood and suicidal thoughts or actions while taking or after stopping chantix. some had seizures while taking chantix. if you have any of these, stop chantix and call your doctor right away. tell your doctor about any history of

or of seizures. don't take chantix if you've had a serious allergic or skin reaction to it. if you have these, stop chantix and call your doctor right away as some can be life-threatening. tell your doctor if you have heart or blood vessel problems, or develop new or worse symptoms. get medical help right away if you have symptoms of a heart attack or stroke. decrease alcohol use while taking chantix. use caution when driving or operating machinery. most common side man, i love being a non-smoker. ask your doctor if chantix is right for you. i'm jerry bell the second. and i'm jerry bell the third. i'm like a big bear and he's my little cub. this little guy is non-stop. he's always hanging out with his friends. you've got to be prepared to sit at the edge of your seat and be ready to get up. there's no "deep couch sitting." definitely not good for my back. this is the part i really don't like right here. (doorbell) what's that? a package! it's a swiffer wetjet. it almost feels like it's moving itself. this is kind of fun. that comes from my floor? eww! this is deep couch sitting. [jerry bell iii]

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desperation can make for powerful motivator. tonight a story near the arctic circle makes that point. the search and refugees flocking into norway in the kid of winter. imagine putting everything you own on your back and getting on a bike.

>> reporter: it's a frozen, barren landscape in the russian arctic circle. and cutting through the cold, fig united airlines with bikes. refugees from thousands of miles away trudging through the snow and pedaling toward what they hope will be a better life. this is the only border crossing between russia and norway. russia doesn't allow people to cross on foot. that's why at the least they've got to use bikes. you can see this big pile of bikes, many cheap russian brand, all new, not a scratch on them, barely used. that one up there still in its wrapping. when people come across, they just dump the bikes into these containers. >> syria is not an option right now for me. >> reporter: he's fleeing war in syria, a long way from home in a tiny russian mining town. he's wearing every piece of clothing he has because it's minus 5 fahrenheit. and this dingy hotel has no heating. >> it's much cheaper than going

small boats to cross to greece, from greece to europe itself. >> reporter: he's waiting for a smuggler to show up with a bike he's bought to make the frigid crossing. >> it will be more like a kid's bicycle. but i will pay a lot of money for it. more than i should. >> reporter: he and about 5,500 others have ridden this more than 10-mile road to the border this year. some of them more than 1 million migrants and refugees who have flooded into europe in 2015. they've crossed the mediterranean sea in flimsy boats. they've climbed over razor wire and under fences. walked countless miles through the heart of europe. almost 4,000 have died in the process this year. and this might be the most extreme. going all the way up to the russian arctic circle to a tiny remote border with norway and crossing by bike.

that they could freeze to death. russian buses will take them part of the way to the actual crossing. it was on one of these buses on the russian side of the border where we met the yahea family from baghdad. >> i leave because my life is kind of dangerous. >> reporter: they paid $4,000 for this route to europe to avoid having to cross the mediterranean by boat. the russian government wouldn't let us film their actual crossing so we met up with hussein, his wife sarah, and their 18-month-old son yuls 7 on the norwegian side. >> what was the first thing that went through your head when you crossed the border knowing you were finally -- >> sure. i feel i am in a safer place. >> reporter: hussein and sara are on the run, their lives threatened by one of iraq's many powerful militias. >> they told me that you, your brother, all your family, we will kill anyone. >> all of your family? >> yes. >> reporter: the middle of the

processed. and outfitted with cold-weather gear for this new, unforgiving climate. in the light of day, the camp is even bleaker than it first looked. rows of trailer bunk houses. all the refugees walking around in matching winter clothes. >> it is bitterly cold this morning. you can see the wind just driving the snow sideways. you can only imagine what's going through the minds of people who have come here from places like the middle east where it's so much warmer. waking up your first mornings in europe, seeing and feeling all of this. no one will end up settling here. the lucky ones will soon fly to southern norway. the unlucky ones, those from countries considered safe enough, will be forced to go back. camp director henry osema tells us for now his goal is to give them as warm a welcome as possible. >> we expect this to continue throughout the winter. i'm afraid it's going to happen.

somebody's going to freeze to death somewhere. >> reporter: inside the family has rested after their long trip and is trying to come to terms with their new reality and what lies ahead. >> how are you feeling right now? >> unhappy. >> unhappy? because you're not at home? >> reporter: as hard as it is to leave home and loved ones behind, seeing your country torn apart, the pain is compounded for so many like this family and this man when forced to accept their new status at refugees. >> i don't know, i'm regretting my decision to emigrate. yeah, i'm seriously regretting my decision. >> reporter: for so many of the hundreds of thousands trying to make their way to europe, it's not a decision at all. but a question of surviving and building a new life. and they'll do whatever it takes to get there.

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this cool gadget and slick ride turning sci-fi dreams into a reality. reports of riders slamming into the ground and landing in the emergency room with broken bones. here's abc's geo benitez. >> reporter: as many reveal what they got for christmas one of the year's hottest gifts leaving many in the hospital. wipeout after wipeout. even professional athletes like baseball player dan uggla hitting the ground. and this u.s. representative taking to twitter to show off his hoverboard injury. we've seen the fires linked to hoverboards. the consumer products safety commission now investigating 21 fire incidents across the country. even tweeting this warning. got a hoverboard for christmas? might want one of these. major airlines banning the devices from flights for fear of the batteries catching fire. >> i was surprised. i didn't think i would get injured that badly. >> this thing goes so frickin' fast! >> reporter: teen xavier

knee. the cpsc says it has received dozens of reports of injuries and is expecting that number to grow. experts urge everyone to wear proper safety gear before taking one for a spin. >> if you want to be taking care of yourself, get wrist guards, helmet. >> reporter: for "nightline," geo benitez in new york. >> remember the good old days when people actually walked places? it was the late comedienne joy adam hot said, if it weren't for the fact that the tv set and the refrigerator are so far apart some of us wouldn't get any exercise at all. thank you for watching. tune into "good morning america" first thing tomorrow. as always we're online 24/7 on our night like facebook page and josh: now at 11:00, our first significant winter weather system of the season. a look at how much to expect, and who will see ice and rain too. tom: road crews are ready for the storm.

doing to make sure they can head