navin loves the rush of the game. his wins. but plays for his health. tennis takes stamina, it takes focus. navin believes this is what it takes to keep his parkinson's disease from getting worse. you really feel that this is part of your survival? >> 100%. >> doctors across the country touting table tennis as a therapy for parkinson's. >> not only to improve my cardiac issues but in terms of the parkinson's disease it greatly improved my muscle stiffness which i did not expect. >> he said it helps with his balance and muscle weakness. >> there's something about table tennis and what it does for the brain that really, really is beneficial. >> a new reason to play. as a young boy he played the low impact sport because it was something his little heart could handle. >> it gave me some confidence in myself being able to actually play something physical and enjoy it. >> navin says the proof is in the power of the paddle. just watch. >> right now i have to deal with the shaky hand. go figure. but how do i compensate? take this beautiful thing here i have in

rebecca: wrong way to do with the navin the best interest of the city, but wrong, according to your book. many of the projects he was siphoning money off t war notot well considered. you give the e example oa local contractor, , wanted mon to invest in a retail space. he ended up guaranteeing up to $95 billion in principal plusus interest for that development, even as they were losing retailers. chris: he was getting this money to developers, and then the deveveloper was if he still, he would guarantee the debt on that money and would usehe city taxpayer as collateral, if you will.. this is what the attororney general said is completely wrong. not onlthat, what makes this even more significant, peopople may look at harrburg pennnnsylvania and say, it is a pity -- city of 50,000, it is not detroit. 50,000 people, ok. but the significance is the attorney generalaid, when thatat first round of charges came down, there is another round to come. that will be the consultants the contractors, the bond attorneys. rebecca: members of the business community benefiting from m all of this. t only lo

as a young boy navin played the low impact sport because it was something his little heart could handle. >> it gave me some confidence in myself being able to actually play something physical and enjoy it. >> reporter: the proof is in the power of the paddle. just watch. >> right now, i have to deal with the shaky hand. go figure. but how do i compensate? take this beautiful thing here, this ping-pong paddle, stick it in my hand and guess what, focus, focus, the hand shaking is gone completely. >> reporter: after his first international the table tennis match in barcelona last month, he has a world ranking thanks in part to coach larry hodges. >> he wouldn't know the navin of a year ago. >> and he's now closer to the goal of keeping his heart and hands healthy. being this good takes a lot of practice. navin is here 20 hours a week and plays against someone who knows what he's doing. >> i'm scared to death playing melissa here. >> in gaithersburg, melissa mollet, news4. >> well, taking it easy on melissa. >> i know. i want to see him take on jim handly. put him in his place. >>> well, mu