>> on "america tonight" - gone to pot. one year in the rocky mountain mother load big money is changing hands. the rise of the legalized marijuana trade is a downer for some communities, hospitals and law enforcements. >> we want the supreme law in this land the supreme court to look at this issue and tell us once and for all whether or not what colorado did was legal or not. >> lori jane gliha looks at the

first year in pot, and an examination of the winners and losers on weed florida's track stars back but suffering. the big surprise - who most wants to bring their race to a halt - the very people that run the tracks. >> we are legally obliged to keep a business operating that losses $2.5 million a year. >> sheila macvicar investigates why the dogs are still on the run and the price we pay - gun violence - when the victims survive, a heavy cost passed along to all of us. >> it's not uncommon for us to have a patient with a total hospital bill for hospitalisation of over 1 million. >> in one of the nation's most violent cities. sara hoy exposed the cost of a gunshot - tonight, the price chicago pays with every bull e

good evening, thank you for joining us. the grand experiment that colorado began, a year ago, is seeing plenty of rocky mountain high and reasons for concern. "america tonight" began a focus on colorado after it legalized pot for recreational use since january. over the past year new businesses celebrated unexpected sales. colorado's new gold rush has some warning of problems no one anticipated, especially important to other states now considering following its lead. lori jane gliha begins with colorado's first year on pot. >> reporter: thousands of pieces of candy, chocolates mint peppermint bars are being crafted. >> we have half a million

backlog before producing 500 units a day, we can produce 1,000 an hour. 2014 is a point of inflection. it's been a momentous year history has been made. >> reporter: a year of recreational marijuana sales transformed this business from a tiny operation in a small denver warehouse to a production powerhouse that tripled in size with triple the staff. his success, fuelled by enormous demand came with the help of this machine - it extracts the t.h.c. from marijuana plans that ends up inedible. >> fully automated, touch screen. this is entry level production system. >> reporter: andy joseph developed the technology. when we met the small-town father-of-five in 2013 he was getting started. his small company apec super critical operated out of his garage in ohio where

recreational marijuana was illegal, and he was getting used to the idea that his machine, designed to extract flavourings in the food industry could be used to extract cannabis oil. >> initially it's nerve-wracking nerve-wracking. when you tell family and friends they think you are a drug dealer. and i'm the furtherst from that. >> reporter: today he's a hope entrepreneur. >> we grew from $750,000 to millions. it went from one person me to 18 staff, i'm not used to it. we are ready to break double digit millions it's phenomenal beyond my wildest dreams. >> reporter: now, he travels monthly to colorado to accommodate his clients. opportunity has been knocking for many including this entrepreneur.

>> tourism exploded here. that's what the big difference is that i noticed. we have a lot of people from out of town. >> reporter: the fact that tourism exploded what does it mean for you business? >> we make double the money. >> she runs i bake denver a social club. pot consumption is banned in public. she offers a private club. she does not sell pot. patients pay a membership and are permitted to smoke their own pot in the open. >> they walk around and see what type of pipe or bong and if they want papers we have some that need computers, they'll go to the charging station, go work there, or we have people that want the community experience. if they have never met you before they talk to you like they know you forever. >> reporter: one is british

shot-putter. >> it took about nine months of working to save up to get out here for a couple of months. >> reporter: not everyone considers the traffic in colorado a success. >> all the border towns along colorado not only nebraska but oklahoma wyoming - we are all seeing the same thing. >> reporter: bj wilkinson is the police chief in sydney nebraska. >> we'll make a traffic stop and a sign is in plain view. or we'll go to a house for domestic disturbance and there'll be a dispensary bottle or bong in the household, and we have not seen it before. >> reporter: since legalization went into effect. the case load has gone up 50%. it's not unusual for a gaol to be full and us to have trouble deciding what to do with additional people. >> this stuff is strawberry cow

girl. >> reporter: the proof, says wilkinson, that colorado pot is making its way to nebraska is in the evidence room. >> all the viaals have on them the name and address of the dispensary in cedric. >> it's the closest dispensary to sydney. they all came from there. >> "america tonight" went to cedric across the border. population 132 to see the dispensary for ourselves. sure enough a car with nebraska plates pulled up to the store. claiming the new law has forced a huge financial burden on them nebraska and oklahoma are suing colorado in a case filed with the u.s. supreme court. >> we want the supreme law in this land the supreme court to look at the issue and tell us once and for all whether or not what colorado did was legal. that's the pre-emptive strike towards legalization everywhere else. >> we can show factually that

marijuana is leaving colorado. >> kevin wong tracks the impact of legalizing marijuana for the federal government in four states in the rocky mountain area. he said there are disturbing trends. >> how prepared would you say colorado was to enact the law? >> we are not prepared. we don't want other states to fall in the same footsteps we have gone through. >> reporter: wong says there's not much data but already the marijuana-related emergency visits is going up and under age kids are getting their hands on the drug. 89% of schools experienced an increase in incidents like possession and intoxication. the data is difficult to parse. a recent study found pot use among teenagers seems to be declining. do you think colorado was prepared to move forward with marijuana retail sales when it happened? >> i think i would say it couldn't have happened a minute

sooner. i think we were ready. i think the roll out, we were pleased with where we were at. ron is the lead regulator, and facing tough criticism. half of residents thing the state is doing a poor job handling the new law. >> what do you think hearing that that half of the people don't think the state has done a good job. >> it's tough to hear. i think we have done a responsible job of blowing this out. we have a lot of other states looking at the model. is it perfect - no? have there been challenges - absolutely. >> reporter: a major challenge, eliminating the black market. supporters promised a legal marketplace would shut out drug dealers. that hasn't happened because there's not enough supply to satisfy the demand. was it a mistake to say it will

eliminate the black market. >> it's more realistic to say we'll shrink the black market. we have collected $50 million in tax. that translates to hundreds of millions of sales in the regulated retail and medical market. that's hundreds of millions not going to the black market. >> there's not as much money going into state coffers as expected. estimates indicated recreational sales could bring in as much as $67 million annually. so far, 50 million has come in. for combined medical and retail tax revenue. colorado's year on pot had its winners and losers. and even those getting rich struggled. the future of their business shadowed by the fact that the federal government still considers it illegal. >> i had a bank account shut in the past. i don't want it to happen again. >> mainstream banks and credit

card companies baulked at dealing with the drug money. >> it's been a fight. most of the tough days are behind us. there's a bright future behind us. >> lori jane gliha is here. that pot businessman was optimistic. there was a dark side happening in the industry as well. >> that's tomorrow's piece. we'll look at the unexpected consequences of edibles and dabbing - an interesting phenomenon. it's a highly concentrated form of marijuana. some use beaut an to get the t.h.c. out of the plant. some of them are causing fires and explosions. as you see, they are burning their skin off and ending up in burns units. we talked to a burn unit doctor who said the specific patients dealing with marijuana had this reaction where they were not reacting well to pain-killers when they came in and were treated. tomorrow we'll find out what he thought about the trend and what he realised was happening with

the patients. >> it would be so alarming to see the pictures and young people involved in that as well. disturbing. can you tell me is there anything the state is doing already to head this off. this is a horrible trend. >> some cities are enacting ard nanses it where you experiment in your backyard. the state has taken access for edibles. they have created a way with specific sizes to people don't overdose. there's a new education campaign to let people know the rules when they come to colorado and buy marnal rr. marijuana. >> with marijuana leader if you choose to use, don't drive, catch a ride. stay at home emanuel it under a lid, store is it under the reach of kids. for those under 21 it's not

okay:. >> so basically they are doing basic simple things because they find people are coming they don't know what the law is. this is the beginning, they launched a plan to edu kate youths and breastfeeding mothers, and helping the public know what the rules are and how to handle themselves. >> lori jane gliha, we look forward to your report on that serious concern and backlash on pot. thank you. >> "america tonight" returns in a moment as correspondent sheila macvicar investigates a state that has gone to the dogs. >> a lot of greyhound in the industry suffer broken legs. other report injuries including heart attack paralysis. dogs are electrocuted when they full into the lure

florida's dog racing industry and why the actists who want to see it come to a halt are the track owners how low can it go? we saw the prices at the pump drop. why? is this a good sign or warning or the rest of our economy?

it's crazy money that you can make here. [[vo]] behind america's oil boom. >>it's a ticking time bomb. [[vo]] uncovering shocking working conditions. >>do you know what chemicals

have been in that tank? [[vo]] and the deadly human cost. >>my big brother didn't wake up the next day. [[vo]] faultlines. al jazeera america's hard-hitting & >>today, they will be arrested. [[vo]] ground-breaking & >>they're firing canisters and gas at us! [[vo]] emmy award winning investigative series. a look to winners and losers at the track. more than half of the nation's 21 racing tracks for dog racing are in florida. the state is facing increasing scrutiny over the treatment of the animals and more. more than 180 racing greyhounds died in florida last year the first time the state recorded the numbers. what is more surprising is growing opposition to dog racing

from the track owners. on why the dogs keep running - sheila macvicar investigated greyhound racing in victoria. >> reporter: greyhounds bolt from the starting gate chasing a mechanical rabbit. they are so fast that they run at 45 miles per hour. twice the speed of the fastest human. greyhounds have been running around tracks in florida for decades, along with horse racing that legalized gambling in the state. there was a time when going to the dogs was glamorous, the place to be attracting tens of thousands of eager spectators. those days are long gone. these grandstands bit for 10,000 and once packed were almost empty on a recent after

noon. what used to be a lucrative sport is a money-losing proposition, bringing a black eye from animal groups. >> this is an industry that is dying because of competition from other forms of gambling and it's dying because of concerns about the way dogs are treated in the industry. >> reporter: cary is an anti-greyhound racing activist with grade 2 k a nonprofit group campaigning to put an end to dog racing in seven states where it is legal. >> racing greyhounds spend 22 hours a day in their cage. it's a life of confinement. it's a life of confinement for literally thousands of dogs. i would ask everyone to ask themselves would you treat your dog in this way. the answer is no. greyhound racing is dangerous for the dogs.

hundreds are injured, forced into retirement and threatened with being put down if a new home cannot be found. more shocking, state records obtained by "america tonight". showing that one racing greyhound dies at a florida track every three days. >> most of those are due to serious injuries. we know based on data from other states that a lot the greyhounds in this industry suffer broken legs. others report injuries like heart attack paralysis. dogs are electrocuted when they fall into the lure. >> this daytona beach shows a dog suffering a fatal fall. >> town -- down goes the two. >> so does this jacksonville video. >> we have to stop this inhumane way of gambling. >> reporter: state senator ran

her investigation into how the dogs were treated. >> is it true that the dogs are kept in small ken else. is it true that they are kept in vans that are not airconditioned. is it true that they are confined for many hours during the day? >> the answer is it's true. the people of florida, once they find out what goes on behind the tracks, behind the lights behind the excitement once they see what is really going on they'll say "enough, this is not who we are as a people." >> reporter: those that argue to an end to dog racing on humane grounds have unlikelial lies. >> if we have 100 watching a dog race, it's a lot of people. >> dog track owners who want to reduce dog racing. he and his family own the naples fort meyers track and poker room

in south-west florida, a business started by his grandfather. he has heard the criticism, watched the decline of the sport. why do it? >> poker is profitable and state of florida law mandates that we run the dogs to keep the poker room open. we are legally obliged to keep the business operating that is losing 2.5 million. >> just at this track. >> just at this track. >> a 1947 florida law meant to keep dog breeders and trainers in business. mandating that they run the races if they want to keep the poker rooms. the poker law says it has to run 90% of races in 1996. 20 years ago the track was packed. it was a great source of entertainment. in 20 years it changed. >> 3200 races every season each

one a money loser, each one potentially harming dogs. across the state betting on greyhound has fallen by 50%. florida's greyhounds compete for the attention of a generation that came on page for the internet. >> most people my age and younger have no interest in watching any animal run around in a circle. >> reporter: he would like to offer a limited racing schedule. he can't, unless the state legislature passes a law putting an end to the link between dog races and poker rooms, decoupling the two. that is something the senator supports. >> if we decouple it will go the way of any other business. if it's a viable business it will succeed and flourish. if it is not a viable business it will die. everybody those in the state that greyhound rating is not a

viable business. >> the state of florida loses money on dogs spending 1.8 million more to regulate the industry than it receives in tax revenues revenues. >> we as a state government should not be in the business of putting money into a sport that is inhumane and losing money. >> reporter: the decoupling law came before the legislature twice before in five years and failed. despite bipartisan support, there are powerful forces with deep pockets loined up against it. >> you can't change overnight something that has been in existence this long. >> former governor general is fighting for a group opposing a decoupling law - the people that own and train the dogs. the track owners shouldn't be quick to throw the dog owners under the bus.

>> they have had a lot of benefit of having a monopoly in the arena, and made billions. if they don't want to do it any more fine. relinquish the licence, put it out to bid. >> the dogs owners and track owners are bit players in the fight. >> this issue is not about dog safety or anything else. it's a larger debate over the expansion of gambling. a debate where there's money and influence, and a state government showing little inclination to grapple with the issues. if the dogs go away horse racing might be next. in florida. thorough bred racing is a billion dollar interest. >> then there's the tripe that controls gambling, thanks to a deal cut with the state.

the seminoles don't want track owners shutting down and competing, by expanding into casinos with slot machines. these track owners are outgunned by the big money players. >> everyone expects us to play at a level of an opponent that we can't compete with. if the seminal tribe are an n.f.l. team maybe a high school jv football team. we can't compete at the same level. >> the semin ol tribe has influence and money. >> yes, and has the largest business in the state of florida, and one of the three largest gaming companies in the world. >> when the gaming bills come up in tallahassee. it almost collapses from the weight of the greed. people want more and more and more. and are making a heck of a lot of money off of it. >> there's a lot of money.

>> there's a lot of money. >> when legislators take up the issue, they'll face lobbyists, including casino owners from los angeles and beyond. we are looking for a piece of the rich gambling pot. the dogs are at the back of the pack. >> our issue to help dogs essentially becomes a bargaining chip and we are held hostage by other players in the larger debate. >> florida is like the girl is a dance. it's pretty and hasn't been asked to dance. we are a resort state. everyone wants to come in and start the casino. it's something where it's been tempting with entities. >> reporter: big entities with big bucks. the miami "herald" found the malaysian based conglomerate

maid $2.5 million during campaign contributions. the semin ol tribe, 2.3 million. aidele son, a whopping 7.5 million. the decoupling bill faces an uphill fight and the florida greyhounds most likely running all out next year. >> what are the consequences if the bill fails? >> the reputation right-hand the country and around the world will suffer as a result of inactivity. >> inactivity which means the races go on and the dogs keep dying. "america tonight" sheila macvicar back was. florida is heading into the next legislative session is there an indication that this year will be different for the dogs? >> they say the first bill will be mandating the report of injured dogs.

when dogs die on the track, one dies every three day on a florida track. that must be report to the state. it will be increased if the bill is passed. to include injured dogs. that's likely the only thing the dogs will get this legislative season. >> there's no hope of decoupling? >> even so the vast majority believes this is the right thing to do and everyone as senator saks says knows that the industry is not available. it will probably not happen because the weight of the industry is enormous the big messy ball of gambling in the state of florida, and the dogs are hostages. >> florida is not the only state that has dough racing. what hap -- dog racing what happens in other states. >> there are seven states where dog racing is legal. florida has 12 tracks the

others arizona, iowa texas, arkansas west virginia alabama, they have one or two tracks. of the number of dog races that are held in the united states and it's 50,000 maybe more around that number the fast majority takes place in florida. >> and so many dogs. >> 8,000 dogs in florida alone, and there's great breeding industries. it is going off a cliff in terms of audience participation and viewership. there's a lot of people who are deeply involved in breeding the dogs and training the dogs. those people do not want to see their livelihood go away. >> "america tonight"s sheila macvicar ahead - "america tonight" returns with a look at the high-priced paid just to survive. >> looking at like - almost like $10 million.

>> $10 million. >> sara hoy in chicago, where gun violence has claimed so many laws but even survivors are burdened with the cost of a bullet. and after the break - what is going on with gas prices. are the deep drops food for the economy.

and welcome back. here is a snapshot of stories making headlines on "america tonight". the manhunt for the gunman who shot two n.y.p.d. officers and police arrest three men suspected of shooting the plain-clothed officers after a robbery in the bronx on monday. the officer's industries were not life threatening. >> detroit launches an effort to test 2400 rape kits found in a police storage unit. public and private money will be

needed to test them. seven years ago state police discovered 11,000 untested rape kits some dated back 25 years. so far 2,000 kits have been examined. >> for the first time in eight years republicans control both houses of congress a warning shot came because the bow, an hour after the new congress they threatened to veto the keystone pipeline. setting up the first showdown. oil was not just a talking point on the hill. the falling price is a concern for the financial industry. >> we see it at the pump. it's the price of crude oil that is the shocker, sitting below the $50, the lowest in five years. analysts say it will not rise much above that soon. why? behind the slump, the world's largest oil exporters, saudi arabia, the saudis have been slashing prices for months.

at the same time have not cut back production. remember economist 101 - plenty of supply not much demand. that is keeping prices down low. the explanation for the actions - the global economy. >> translation: you are well aware about the global market turmoil, caused by many factors. mainly by weakness in the global economy. >> whatever the motivation. the low pump is a nice post-holiday gift. >> i saw the $1.93 - i thought that is awesome, the prices we love when we travel. >> use the money for other things and get to go where i need to go. i own my own business. it's real important air travellers have not seen the sayings. airlines buy the fuel months ahead. >> with airlines taking flight air passengers may not get much of a break. >> for the rest of the energy

sector including the natural gas tracking industry and shale producers, big oil's power is putting a crimp on profit. even nonprofit producers are bracing for trouble ahead. all the cheap i will making it tough for the economies. >> just as weaker oil is a benefit for consumers, it is a negative for the producing nations in terms of revenue, in terms of employment and in terms of growth. i think that these currencies will remain week. >> to help us better understand what is going on with oil price, here is ali velshi. i felt good about filling up my tank. if i don't have to spend as much on filling up my car, i have more money to spend on everything else. that's good for the economy, right? >> it's a lot of money when you think about it. a research organization auld

alex partners ran the numbers and said at a dollar lower, assuming oil stayed that way for a year the net benefit to consumers filling the tanks would be $150 billion. where does the $150 billion goes. if it goes to the economy, movie theatres retailers, into home renovations, that benefits the economy. it's a tough argument. there are bad things about oil at $47. for most americans who drive, or consume oil or in the north-east heat their home we shouldn't talk about any bad side of this let it continue a lot think. >> what about o.p.e.c. can't the cartel control the price. could they inflate it to make themselves more money? >> well in the day when you and i learnt about economics. o.p.e.c. controlled most of the oil in the world. since that day a number of things happened. canada - they became one of the biggest oil producers.

mexico norway russia. big oil-producing countries not part of o.p.e.c. o.p.e.c. in the day could turn off a quarter of a billion a day with a small agreement. o.p.e.c. has no influence over the other countries. united states is a big oil producer. now you don't have agreement amongst everyone that we should turn it down. saudi arabia is thought of as the swinging country, turning it down or up. they are getting hit by this two. they are wealthy. the gulf countries are wealthy, they can afford the revenue that doesn't come in. >> you mentioned canada. the tar sands in canada and the oil coming from that. that goes to the keystone pipeline. now the president says he'd veto that something that the

republicans wanted. doesn't a falling oil price mean develop, and what about fracking. >> the republicans will not back off from this. they'll have forecasters say, as many do that oil will go up to somewhere in the '60s, or 70s that this is a temporary phenomenon. whether you get our oil out of the tar sands in canada. doesn't pay for it. that's part of the vet. if they hold out at prices like this without cutting production. they'll put a lot of players out of the game. keystone xl becomes irrelevant with each passing day. there's not a lot of people that says prices will stay at the level. >> if you are a drin and use -- driver and use heating oil, fill up. >> i feel like visiting it up

again and again. ali velshi host of "real money". ahead - we stay on the money with a price we all pay that you may not consider. in a city seeing gun violence sara hoy considers the cost of a gunshot. >> it's not uncommon for us to have a patient bill for their acute hospitalisation of over a million dollars. later - inside the mind of a suspected killer and those that survived a horrific crime. >> what i learnt about society is we do amazing things. a look at the boston marathon bombing - with a survivor.

coming up or "consider this", criticism over our relationship with cuba. the cuban government accused of not living up to the deal with the u.s. and why john boehner's

speakership was anything but smooth the price to get cheaper airfares the airlines ending up in court and how patients are getting unprecedented health care. [ inaudible ] a decline in homicides does not tell the whole story. the number of homicides come paired with 2013 has declined. the numbers of incidents overall is 1%. -- 11%. in chicago

[ inaudible ] something you may not have considered. >> it was a 2005. it was a great day. owens was 21 when a stranger shot him twice on the way home from work. >> it felt like hot lava. >> reporter: it was his worst nightmare. he was paralyzed, and would never walk again. >> i was doing everything i wanted to do. from doing it. >> reporter: what usually gets attention from gang violence is

those who die. and those that live. and the cost that goes with it. gunshot wounds are the third highest injuries. long term health costs climbing. [ inaudible ] >> reporter: what you would say from the start to now? >> looking at, like... ..$10 million. >> reporter: $10 million. >> yes. [ inaudible ] i was back and forth, you know.

>> reporter: this is a medical center the same hospital where owens was taken. they say the majority of people shot lived. >> if you look at the numbers from chicago, roughly a fifth of the patients who are shot are homicides. but there's a large population of individuals who survive gunshot wounds. and beyond the injuries many of the patients end up with long term health problems. >> long term problems that equal long-term costs. at university of chicago crime lab study buts the cost is $180 million. shootings in the windy city costing $2.5 billion, or $2500 per household. >> it's not uncommon for a patience to have a bill of over there is million. >> reporter: over a million.

>> yes. in that situation, the patience has no insures, it's free care provided by the hospital. >> reporter: that's over a million. by one estimate annual firearm injuries cost $645 per gun in america. it's not who you think that's paying the price. >> there's a certain belief out there that all trauma patients deserve being shot. they are all gang bankers. the majority of patients are not necessarily in gangs or result of in gang incident. the majority can be innocent victims. >> in may, michael was driving around, when he heard the window crack. >> punched me in the left showed

ever. i knew it wasn't a punch, it knocked me over and i slumped over the wheel. >> the 57-year-old father of two was hit by a stray bullet. >> i'm not a gang banker i'm not a thug, bangger, i'm not a thug, bang er i'm a teacher. i was thinking why would someone want to shoot me. i figured out it was an act of random violence. >> reporter: you were wrong place at the wrong time. >> yes, i was driving along in my car. the bullet came through the driver's side back window and it hit me in the back. >> reporter: that bullet would leave brown without the use of his arms or legs changing his life forever. >> i don't know if i'll be able to teach again or work again. you are left in a state of

wonderment about your own financial future. >> reporter: brown's health insurance paid for hospitalisation and physical therapy. >> my wife was working full-time, and had to leave her job. it affected her, because she and my sons and my these are my primary caregivers. if 20 people have been shot probably 200 300 people have been affected you know. in my case sometimes i lay up in the bed with a lot of time to think about how the one bullet changed so many lives. >> reporter: brown taught high school maths for 34 years, and pastor at a church he founded with his wife. losing his place at the pull pit may prove to be the biggest cost

of all. >> how hard is it for you not to minister? >> i get emotional when i talk about it because ministry is my life. you know and to not be able to stand there and do what god has called me to do it's - i can't describe it. it's heart wrenching. >> it's been nearly a decade since derek owens was shot. he lives with his sister in a house that is not wheelchair accessible. he insists on doing most things himself. every day he's reminded of the high cost of gun violence. >> i seen a lot of neighbourhoods, a lot of guys. >> reporter: owen volunteers for a programme that connects trauma victims, teaching them to adjust to their new lives. >> they have the bus,

wheelchairs, i don't want anyone else to feel the way i felt. and it has got to talk to someone early. it's good and led it to no one there willing to relate. >> on a recent afternoon, he is showing a friend how to drive. >> that's how i'm talking now. basically it is going to be okay. it takes time. it will be hard it will be hard. it's not easy. you have to prepare yourself for that. >> owen says the wheelchair does not define him. >> none of us are defined by gun violence. it will pass it will change. it's unfair we have to go through it. we are experiencing it. but it's a sign again. it will. >> reporter: the price for the bullet that cost him down is one he is still paying.

before the end of this hour, the trial that returns all of us to a chattered moment and a city that rose strong from it. a voice from boston on survivors and real strooenged. strength.

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production is huge... >> no noise, no clutter, just real reporting. the new al jazeera america mobile app available for your apple and android mobile device. download it now finally from us this evening, court proceedings as the jury in the case of dzhokhar tsarnaev is selected. at trial, we may learn more about the motive and how the attack was carried out. we have already learnt about the strengths of a community in the face of its greatest moment of adversity. thousands who stood boston

respond, dr vivac shaw. >> it started, it was amazing much the weather was perfect. it was my best run so far. i felt good. i made the turn came down wilson. and i threw my hands up i felt good. >> reporter: and then... [ explosion ] >>reporter: the unthinkableful. >> first i didn't know what it was. spectators ran towards us. that's when we knew that something was wrong. >> amid the chaos, his first thought, his family where were they? >> my wife met me at the finish line for every marathon. she was there with my daughter parents and sister. i ran towards where the explosions went off. i found them in front of the old south church after i had helped a couple and realised that there were plenty of emergency

personnel. i ran and looked until i found them. luckily they didn't leave like they were told to and stayed. they knew that i would be locking for them there. >> his body spent by the marathon highs mind racing fuelled by the panic in that moment. >> having the amazing power of adrenaline. i don't know how. i think that the fear of what could happen to your family and the desire to help gives you a lot of strength. >> reporter: his own family safe shaw shifted into doctor mode. he's an orthopaedic surgeon at a nearby hospital. in the scrum of the emergency, he was shoulder to shoulder with an army of medical professionals. >> you don't think - i think we have so many hours of training and having done things like this before that you just run towards wherever the issue is

and you assess it and then you treat the injuries. by the time that i got to the finish line it was amazing. there were first responders police officers emergency personnel that usually volunteer at the finish line and everyone was there, and almost every victim has someone helping them. >> the compassion and care was more than a community's gesture, but a phenomenon known as boston strong. >> there were a lot of spectators and runners besides myself helping. holding hands, talking to them. >> babe it would only happen on a city of ivory charms. harvard dug deep into what made boston so strong. yes, some of it was luck. the bombs went off yards away from the medical tents. >> the medical tends are past

the finish line for a lot of runners who are exhausted or fatigued after the race. >> there was more to boston strong than luck. the city is better equipped for a disaster than just about any other. the most badly hurt were dispatched to eight level 1 trauma centers. >> i did my training at the medical center which, if you continue down the street five blocks is there, a level one trauma center. if it had to happen in some ways we were lucky there were so many capable emergency personnel around. it was amazing. talking to people that i know at various hospitals in the city of boston they prepare for disasters like this and not only did they handle them but they reviewed their responses weeks later to make sure that if there was anything that could be done better they did it. and work on improving it. i think the entire response from the time that the explosions

happened to the aftermath, weeks, months later. people took it seriously, and are preparing for what could happen in the future. >> and there is a legacy to boston strong. >> all right, boston. >> what i learnt about the society is we can do amazing things. and we have to not do it at the time of tragedy, and hopefully do it on a daily basis. it takes events like this to realise that we can take the event on a daily basis. this brings the city of boston together. the tragedy brings the city together tightly. a smaller city. bent but unbroken. boston turned its corner. ready to run again. >> i don't think there was much choice. because, like i said it was

supposed to be my last. but i don't want that to be my lasting memory of the boston marathon that is the voice of boston strong on "america tonight". join us wednesday for more of an indepth look of colorado's year in pot. there has been rocky mountain highs and lows as well as communities, doctors and police learn about new risks. dabs and overdoses and near fatal explosions. lori jane gliha's next report examines the dark side of a booming industry. that's wednesday on "america tonight". tell us what you think on the website con aljazeera.com/americatonight, and join the conversation on twitter or facebook. we'll have more of "america tonight" tomorrow. >> consider this: the news of

the day plus so much more. >> we begin with the growing controversy. >> answers to the questions no one else will ask. >> real perspective, consider this on al jazeera america growing anger over america's moves to normalize relations with cuba. critics are slamming the cuban government or not holding up its end of the deal. tense moments in the speaker of the house, and the david versus goliath battle in a move to get you cheaper flights. hello, i'm antonio mora and this is "consider this". those stories and more ahead. >>