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Say they were robbed by armed men in a white van who ordered them to the ground. the security guards say they had left their weapons in the truck and at some point the suspects took them. >> they did violate a lot of company protocols with regard to exiting a truck without their firearms on them. >> reporter: the suspects then apparently tied the guard's hands behind their backs and led them in to the woods before they fled the scene with the gold. according to 911 calls, the two security guards ran back to the highway. one driver pulled over to see what was going on. >> where are you guys fro...

Here now abc's bazi kanani. >> the parents who made headlines for letting their 10 and 6-year-old walk home a mile from a park without adult supervision are found responsibility by child protective services for unsubstantiated child neglect. >> it is shocking hurtful and traumatic. would have never occurred to me that i could get caught up in something like this. >> reporter: danielle and alexander meitiv say they knew their style of parenting, known as free-range parenting, giving children more space and responsibility was old fashioned, but they never thought it would come under investigatio...

They said they will review them for release as soon as possible. >> as she faces a subpoena, the question remains did she do anything illegal? abc's jonathan karl has more. >> reporter: we are learning not only did mrs. clinton in a possible violation of federal regulations completely bypass the state department's e-mail system, it turns out she also bypassed big e-mail providers like gmail and yahoo. instead running her e-mails through a private server, apparently set up at her home in chappaqua, new york. a fact first reported by the associated press. even odder, her email server is register...

As for the sole passenger on the bus -- her choice of seat on this day may have made all of the difference. lindsey davis, abc news, new york. >> only one person on that bus that is remarkable that it happened to be the case. that could have been a whole lot worse. the scene, my goodness. >> it is, wow. they are right. you don't know who's in charge of making these decisions, and remember the wal-mart case we were talking about the truck drivers. a lot of these folks are overworked, maybe working two jobs and it's hard to regulate. >> i have a new respect for sleep deprivation and how importan...

Big does have its challenges. what does his meal look like? how much food is it? >> 50 pounds of dog food a week. she a cute, balanced, friendly dog. >> reporter: he is hoping that hulk can prove to the public that pit bulls can be loving pets. >> he is a perfect ambassador dog for this. >> reporter: for "nightline," i'm sara haines in new york. >> did he just roll over on sara haines? >> he is a gentle giant, though. >> gentle giant. >> oh. >> wow. >> yep. he was a gentle giant with me, too but a little tired. >> but you look scared of him. >> i'm always scared of things that are slightly big...