Gaga debuting her new song the cure at coachella, but its her video with Prince William thats taking the crown. Her intriguing connection to the royal family. Ill always be there first here tonight the nightline 5. I had frequent heartburn. My doctor recommended prilosec otc seven years ago. Five years ago. Last week. One pill each morning, 24 hours and zero heartburn. The number one doctorrecommended brand for ten straight years. Its still recommended today. Use as directed. Ive seen a change in einstein since he started eating beneful. The beef was fantastic. He has enough energy to believe that he can jump high enough to catch a bird. Now try beneful grain free. Made with wholesome ingredients and no grain. Good evening. We begin with a bloody ending to a mystifying and horrifying story involving a murder that played out on a video posted on facebook. The suspect recording on his phone as he shot and killed an elderly man right on the street. The case is raising all sorts of questions about crime in the era of social media. Looks like theres one guy down in the white car. Reporter the twoday nationwide manhunt for 37yearold murder suspect Steve Stevens is finally over after he took his own life late this money. This started with one tragedy and ended with another person taking their own life. Loss of life is loss of life. We would like to have brought steven peacefully and really talked to him to find out exactly why this happened. Im at the point where i snapped. Reporter stevens on the run after posting this chilling video to his Facebook Page on easter sunday. Find me somebody im going to kill, kill this guy right here, old dude. R randomly killing 74yearold Robert Godwin senior in cold blood on a sidewalk in cleveland. How old are you . Oh, man look reporter 911 calls from a neighbor witness described the chaotic aftermath. Where was he shot at . Hes been shot in the head. Is he awake at all . No, i dont hes unconscious, hes dead. Reporter police made phone contact with stevens sunday but werent able to convince him to turn himself in. Stevens trail went cold shortly thereafter, leaving much of the country on edge. This individual is armed and dangerous and at this point heck be a lot of places. Cases like this where theres a National Search and leads have dried up, the public is part of solving the crime. Reporter the key to finding stevens today, a call to 911 from drivethrough employees at a mcdonalds in erie, pennsylvania, where stevens cell phone had pinged a tower on sunday. Came through drivethrough, first window where he paid. The drivethrough employee that was working at the time recognized him or thought noticed that the car was ohio tags and it was a white fusion. And took his money and he pulled to the next window. Meanwhile she stepped out of there and called the state police right away. Reporter employees then asked stevens to wait for his fries, which they deliberately held back in order to give Law Enforcement time to arrive. He didnt want to wait for the fries which was fine. But he took his sixpiece, didnt want any money back, and headed out onto buffalo road. The minute he turned right on buffalo road, the state police right behind him at that point. Losing him wasnt an option at this point, there was too much at stake. Reporter a short pursuit followed with Pennsylvania State troopers bringing stevens car to a stop. At that time stevens used a handgun to take his own life. Reporter for the family of the victim, a grandfather of 14, stevens death offers little comfort. It still aint making me feel no better himself out like a coward. No closure for me and my babies. Reporter this senseless killing raises real questions about the role and responsibility of social media in potentially glorifying acts of violence. This is something that should not have been shared around the world. Period. Reporter stevens graphic video remained on his Facebook Page for more than two hours, viewed by more than 1,000 people, before his account was disabled. Today the ceo of facebook, mark zuckerberg, acknowledged his Company Needs to do better. Our hearts go out to the family and friends of Robert Godwin senior. We will keep doing all we can to prevent tragedies like this from happening. Reporter stevens murder video was part of a series of rants he posted on his Facebook Page sunday morning. I deal with problems every day but when it comes to my [ bleep ] nobody gives a [ bleep ]. Reporter he camed he was on a killing spree. I killed 13, working on 14 as we speak. Im running around hating [ bleep ], i just snapped, man. Reporter stevens is not the first to post himself committing a Violent Crime on social media. Earlier this year, a Facebook Live video in chicago captured the beating of an 18yearold with special needs for nearly 30 minutes. In that case, facebook removed the video and the four suspects were charged with committing a hate crime, kidnapping, unlawful restraint, and aggravated battery. We got a busted taillight in the back reporter last summer a Facebook Live video of Philando Castille dying after being shot by a Police Officer while disturbing, also cast a powerful spotlight on Police Traffic stops and racial justice. He just shot his arm off. Reporter ska steels girlfriend, diamond reynolds, kept streaming, providing possible evidence in upcoming trial of the officer who pleaded not guilty to seconddegree manslaughter. Hes licensed to carry. He was trying to get out his i. D. Pocket. I chose to allow the video to go live ten seconds before my phone died, because i wanted everybody in the world to see what the police do and how they roll and its not right. Reporter in response to the Steve Stevens video facebook said they are reviewing their reporting flows to be sure people can report videos and other material that violates our standards as easily and quickly as possible. And that theyre constantly exploring ways that new technologies can make them sure that facebook is a safe environment, including artificial intelligence. A couple of minutes on the internet now of a video can go viral, because it can be copied and shared widely in a number of different places. So these companies have a real reason to want to make sure its not there in the first place. Reporter brian godwin, grandson of Steve Stevens victim, pleaded with people on twitter to stop spreading the horrific video saying, please, please, pleas that individuvideo and report ao has posted it, that is my grandfather, show some respect. That plea a reminder just as Law Enforcement relied on the public to report any information about stevens whereabouts, so too do social Media Companies rely on users to spot trouble online. We rely on the public to report and to participate in ensuring that our communities are safe. So we want to encourage people who are interacting on facebook to report inappropriate conduct. Reporter tonight, Law Enforcement continues its investigation into Steve Stevens, who worked at a facility that helps troubled youth. The person that i knew 15 years ago, i could not imagine killing someone for any other reason other than like in selfdefense or Something Like that. Reporter he had documented happier times on his youtube account over the past year and a half, including bowling, fishing, the championship victory of his hometown Cleveland Cava a normal, average guy. Graduated from school. Had stable employment. This is a surprise. Reporter so far, the claims stevens made about killing several other people have not been verified by Law Enforcement. Meanwhile, Robert Godwins friends and family are paying tribute to him, telling my colleague abcs alex perez its my dads invoice. Reporter that they are heartbroken over their loss. Hed give you the shirt off his back. Just to know that i will never, ever hear my fathers voice again. Devastating. You cant get any wronger than taking somebodys life. But my dad would be the kind of person that would say, youve got to forgive. Youve got to forgive. Next here on a different note, they will fly in the ointment so to speak. The doctors using drones to deliver vital treatments to patients in developing countries. And te care for those tuesday blues. Lady gaga video chatting with Prince William. But why . Yebrows . Why do people put milk on cereal . Oh, are you reading why people put milk on cereal . Why does your tummy go grumbily, grumbily, grumbily . Why is it all . 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Far, far away. Proven meta appetite control. From metamucil. Z2c56z zi0z y2c56y yi0y tonight we travel to the island of madagascar, a tropical paradise with flourishing wildlife. Sometimes struggling humans. The population has been ravaged by easily curable diseases due to the prohibitive costs of medical transport. Now a team of doctors has found a workaround, or over, by using drones. Heres abcs alex marquardt. Rep generators, camping gear, food and water. Strapped to the roof of a bus. This is essentially the support mission for getting the medicines that are in those two boxes to the people who need it. Reporter were on our way to a poor remote village to see why this man, dr. Peter small, a tu tuberculosis specialist, is so excited. Madagascar is one of the most beautiful and impoverished countries on earth. Diseases easily treated and cured by modern medicine still spreading unchecked here. This village typifies the challenge faced in delivering heth care in remote areas. Using Innovative Technology to see if we can leap over the roadblocks between here and those villages. Reporter dr. Small wants to soar over those roadblocks using Technology Originally developed for war and now seen everywhere. Drones. The drone here was designed by a vayu which has worked with usaid, the brain child of daniel pep history came up with the idea while living in rural indiana. The drone could do the job and obviate the need for expensive travel at considerable risk and cost, sacrificing daily wages, if theyre farmers having to give up a day in their fields. Reporter the vayu drone takes off like a quad copter, can fly 40 miles like a plane with a fivepound payload, and land vertically. Ferrying samples, tests and medication, eliminating visits to a clinic, all in mere minutes. Melt with wideeyed fascination and excitement. You see this as a Scaleable Technology that can be used around the world and for a variety of medical conditions . I think its highest yield in rural areas of developing countries specifically where you have hilly terrains and poor roads, we can fly there, pick up lab samples, fly back same afternoon, and diagnose a disease and transport medicine busy that evening. Thats unthinkable at the moment. Reporter dr. Small isnt the only one who sees this as revolutionary technology. Another American Group called zipline is using a different kind of drone in rwanda. It doesnt land but parachutes lifesaving emergency supplies into distant areas like the one were on our way to visit. The night before, we watched how they planned for these missions. What theyre doing is using google earth to zoom in on these tiny villages, literally finding the exact spot where these drones are going to land. Thats a nofly zone, i dont like that. Reporter madagascar is raf valk ravaged by tuberculosis. More than 13,000 died of it in 2015, around the world 1. 8 million. The disease which affects the lungs is very treatable, if people have access to care. First question, whats it going to cost . Evidently if youre flying a bomb into a village, money is if youre delivering lifesaving medicines, suddenly you have to do it for practically nothing. Reporter 25,000, to be exact. We cross a river and wind through fields to a village that means nice tree. 60 mud huts, 300 residents. Incredibly removed in time. From an Infectious Disease standpoint, theyre still battling diseases of antiquity like plague. Reporter a warm but wary welcome from the village children. These your geese . Goosy . Geesy . Reporter people here have died of tuberculosis before. There are two known cases, five more suspected cases. The villagers gather so the health team can explain theyll be carrying out tests and training. While a tent is set up as a makeshift Doctors Office to collect saliva samples. 16yearold Maurice Young is one of the suspected tv cases. He has chest pain. And after that that comes out when she cough . Yeah. Tr reporter he tells the team eatment, hes drinking sugar water for the pain. Hes missing school and work because of these symptoms . Yeah. Reporter we go home to see his living conditions. And its immediately clear what the problem could be. Eight people live in this house, including his mother. Both of whom are suspect tuberculosis cases. Every house in this village is like this one where they have an open fire here. Theyre cooking for dinner. And none of them have chimneys. So this entire room, this entire house, is full of smoke. Reporter as dawn breaks in the village, we go back to take more samples. See if he can bring something up, deep in his lungs. I dont see blood in the specimen but this is not a normal thing for someone to cough up, this has me worried. Dow t to take the dispute actual, stick it on a drone, send it sfwhak in a future world i think there will be somebody in this village who can recognize somebody who might have tb, call in a drone, collect the dispute actual, send it back. Reporter the team records a training video and shows the villagers how they would use the quip the drone would fly in. If we can make it work for tb, theres no reason we cant make it work for other things. We could use it for delivering vaccines, for delivering medications for women who are hemorrhaging after childbirth. Reporter back at the lab, dr. Small studies the samples for signs of tuberculosis. There is no clinician who could sit in that village and tell you definitively if those people had tube clothe or not. It absolutely requires a laboratory test. Reporter after more tests he finds that thankfully neither Maurice Young nor his parents have tb. Beyond the hurdles of poverty, education ask technology, we saw for ourselves just how simple the obstacles can be. As if this project isnt complex enough, the drone cant fly in all this pouring rain, which is so common in this country. You can have all the modern technology you want, but its often no match for mother nature. That hasnt dampened the ambitions of the projects leaders. The truth of the matter is when you speak to government officials they recognize the Value Proposition of this technology. There actually is a lot of excitement and a lot of eagerness to start using this technology here. But its not going to happen overnight. Reporter the excitement for all involved so obvious, so contagious, this potential revolution is far more than a flight of fancy. For nightline, im alex marquardt, madagascar. Next here, fresh off the debut of her new song the cure, why lady gaga is getting some digital face time with Prince William. 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In new herbal essences its bio renew a blend of sea kelp, aloe and antioxidants that help bring your hair back to life. Let life in. Meets actual royalty. If i can find a cure it may be the name of her new song, also a way of life. Lady gaga and Prince William teaming up to promote discussion as a cure for the stigma surrounding Mental Health. Everybody has Mental Health. We shouldnt be ashamed of it. From his study and her kitchen, the two chatting over facetime about an issue near and dear to body their hearts. William drawing from the Lessons Learned throughout his charitable work. Whether it was veterans, homelessness, addiction, most of it seemed to stand back to Mental Health issues. Gaga from her struggles with ptsd after a Sexual Assault she says she experienced as a young woman. It reminded me how much my Mental Health changing changed my life. The royals have made Mental Health one of their most prominent causes. This week Williams Brother harry sharing his emotional struggles with the telegraph newspaper opening up about the i can safely say losing my mom at the age of 12, therefore shutting down all my emotions for the last 20 years, has had a quite serious effect on not only my personal life but also my work as well. Proving that even for a prince, or a lady, there are a million reasons not to suffer in silence. Giving me a million reasons a great and important cause. Thank you for watching abc news. I have a feeling i may be giving away some serious money today, because weve got some of the smartest kids in america backstage right now, and they did not come here to lose. Stay right there, because its whiz kids week on who wants to be a millionaire. [cheers and applause] [dramatic music] hey, everybody, its whiz kids week on who wants to be a millionaire. My favorite. Todays whiz kid was named indianas top young scientist twice, has rubbed elbows with president obama twice, and has a provisional patent on her awardwinning invention. Shes not even old enough to drive. From munster, indiana, please welcome 14yearold annie ostojic. [cheers and applause] annie, how you doing . Good, how are you . Good. I have this bizarre feeling that ill be working for you in, like, a year. Really . Congratulations on all these incredible achievements. Thank you. Now, you have a patentyou this invention. Yes, yes. And theres a patent on this. What did you invent . So i redesigned the microwave oven. So you knowhave you tried to warm up frozen food meals, and the inside of your dishes yeah, and its as hot as the sun on the inside, and then its cold on part of it, and it bugs me. Yeah, so i was trying to solve that problem, so i found that the majority of the hot spots are actually around the outer perimeter of your turntable in your microwave, and