george w benitez. there was supposed to be stop-gap measures put in place to make sure that just this kind of thing did not happen. and here we are. what went wrong? >> well, one of the things that was created after the fall of the cold war was to provide humanitarian and elec electoral observers but they were met by gunfire at the border. >> they're toothless, weak, not backed by the world. >> i think it's the lateral. it's not backed by the burled, and it's not empowered to do its job. but we have two dangerous factors at play. we have a great power in europe that is willing to use military forces to change borders. we have not had that since the end of the soviet union, and two, this dangerous, cues that individual individual is using, that he's going in to protect ethnic russians. well, there are many countries that have ethnic russians in them, and that could be a dangerous component. >> how could this fail so spectacularly? >> well, in all honesty i disagree with the previous speaker in the sense

embarrassment for the agency not only running the site but also the george washington bridge used as a political weapon. abc's gio benitezrrorists. officials promised this would be the most secure high-rise on earth. how, then, did 16-year-old just justin casquejo, seen here on his facebook page, standing on the railing with the tower in the background, climb to the very top? police tell us at 4 a.m. the teen squeezes through a one-foot opening in the fence around the construction site, climbs the scaffolding up to the sixth floor, took the elevator to the 88th floor, then walked up the stairs to the 104th floor where he went right past an inattentive security guard. on the roof he climbed a ladder up to the antenna. around 6 a.m. he was spotted by a construction worker when he tried to leave. and he was arrested. he also had to go through two additional security checkpoints on site. >> obviously, it's shocking and troubling. i don't know how it possibly could have happened. >> reporter: he is now charged with criminal trespass and could get more than three months in jail. friends say he was a thrill-seeker. >> he is the

benitez here with the latest. good morning, gio. >> reporter: good morning to you, george.se sparked a nationwide search. the reward set at nearly $500,000. now this morning, police say an unemployed 29-year-old was her kidnapper and killer. this morning, heartbreak for so many searching for nursing student holly bobo, just 20 years old when she disappeared outside nashville three years ago. this man, 29-year-old zachary adams indicted, accused of kidnapping and murdering bobo. listen as someone cries out during the news conference. >> the decatur county grand jury handed down indictment of especially aggravated kidnapping and first degree felony murder [ screams ] >> on zachary adams. >> reporter: bobo disappeared in april 2011. her brother quint last saw her being led into the woods by a man dressed in camouflage. bobo's cousin country music star whitney duncan spent years pleading for her safe return. >> it's a close family, so we're just trying to hold it together. >> reporter: overnight tweeting words can't describe the heartbreak. thank you for the prayers. adams has

benitez is on the scene right now. good morning, gio. so hard to believe this was even possible. >> reporter: yeah, george. everyone is just stunned. i mean here we are at the site of the 9/11 attacks and still a kid, a teenager, was able to walk right in undetected. this morning serious questions over how this 16-year-old allegedly broke into and climbed what's supposed to be one of the most secure buildings on earth, one world trade center. "the new york post" which broke the story published these photos of justin casquejo on top of other buildings and swinging from cranes in the past. but how did he allegedly breech the 9/11 memorial site? >> it's a huge lapse in security. he shouldn't be able to even get on that property. >> reporter: police tell abc news the new jersey teen squeezed through a one-foot opening in a fence around the construction site at 4:00 a.m. then climbed the scaffolding up to the sixth floor, took the elevator to the 88th floor without eliciting suspicion from an elevator attendant, then walked up to the stairs to the 104th floor where he went right past a sleeping security guard. once on the roof he climbe