a typical school day at hinsdale, elementary.ne-fourth grader, matthew aslin won't be there this morning. or any morning. >> now, if you look at him, what do you think? you think he's going to be friendly? >> matthew's mother is home schooling her son this year. >> when he was out of school, he was well. when he was in school, he became ill. last year was, by far, his worst year. he missed more than 50 days of school. >> mold at hinsdale, she says, was making her son sick. >> this bag represents most of the medications that matthew was on last year. this is a mist. he was given erythromicin. when he left school, he left all of this behind him. he needs none of it. so this is garbage. >> ale kbrxandria pulled her af her persistent cough wouldn't go away. that was a tough decision because her father, paul, was on the school board at the time. >> she was put on a nebraska ewe liezer, steroids and another medication. since she's been at another school, she hasn't been on any of it. >> the school district spent $16,000 this fall to ge

. ♪ >>> hinsdale, illinois, january 29th, 2008.2-year-old chicago man, frank treadzig, gets his minivan stuck on the tracks at a railroad crossing. a police dashboard camera records what happens as two trains race toward the vehicle. the trin from the east hits first, pushing the van down the track as the driver narrowly escapes. moments later, the train coming from the west plows into it and the van bursts into flames. >> this person that was in this vehicle was literally seconds from losing their life. >> the driver would likely have died if not for the help of a passerby, dan nugent, who sees him standing next to his car on the tracks. >> you didn't have a lot of time to think. i didn't have time to think about it. >> treadzig seems disoriented and unaware that he's directly in the path of the speeding train. but nugent is able to coax him to safety just before impact. >> one second the van was there, the next second it wasn't. >> his actions were heroic. he did what many people would not. >> this is similar to what the van look