dr. schneider's clinic to see if he has anything to say. no answer. suddenly his station wagon rolls from the alley. where are you going? stop. just stop for one second. i ask him about the allegations of choking and other when you see this video of these kids, you've seen this on facebook. this kid is screaming. what is going on? his denial is laced with profanity. he says he didn't do any of it. all the allegations are false. he said giving up his medical practice was in no way an admission of guilt. he insists he was a great dentist. the next day a process server approaches him in the driveway >> reporter: with a bag full of legal notices and a camera crew hired by the family's legal team. he runs his car up onto his front lawn, he tosses the heavy bag full of civil legal notices, attacks the camera, hurls a flashlight and finally throws a can of shaving cream. in recent months she's settled 104 of the total including those brought by the families of zion and brieelle. things are not likely to be better for him soon. his wife filed for divorce. his

dr. schneider made a lot of them off the poor.early 4 million in government payments in only five years. recently a few states have begun to regulate or limit controversial treatments. such as how long a child can be restrained in a board and the number of procedures a child might be subjected to in a single visit. but florida is not one of them. so the boards remain legal there. >> i know. ips. we want to make sure -- >> reporter: at first on a local tv station he seems cordial in defense of his method. >> we use the help of parents and we wrap them so they will not fall out and hurt themselves. >> reporter: shortly after that int interview, his clinic shuts the doors. by surrendering his license to practice dentistry, he avoids a full dental board investigation. but his problems have only just begun. this past november he was arrested and charged with 11 counts of medicaid provider fraud and one count of scheming with intent to defraud. after his release, we paid a visit to dr. schneider's clinic to see if he has anything to say

dr. sanjay gupta has brad schneider's story. >> reporter: brad had actually been a competitive swimmer allen captain of the swim team. the water was familiar territory for him. how different would it be without his vision? >> when i dove in, i found this really cool sense of this freedom, this liberation from the burden of this new reality, right. >> reporter: was there a point when you realized, look, i'm really pretty good at this, and maybe this is something where i can go to the paralympics? >> people were talking about the world record is in reach and this and that and the other things. i said, guys, no. you guys don't understand -- this is not -- you can't just happen into this. it takes years and years and years of dedication and hard work and mastering these different techniques that i'm only just now learning, right? it would be impossible for this to happen. >> reporter: this man here, bradley schneider, dominated the morning heat. >> reporter: against the odd, brad did qualify for the london paralympic games in the summer of 2012. >> lane number six with a move -- >> reporter: h