>> reporter: janis hid his condition but then became tooch to bear. in 1984 at a white house event, janis finally revealed efr eed everything. >> the disease is still with me. i have it, but it does not have me. >> reporter: it was at first cathartic, but thoen he became depressed. for a year he refused to play. janis' wife whose father is the actsor gary cooper asked him to compose a piece for a dum documentary about her father. >> reporter: that piece brought her back. >> i can still play. that's what i want to show people, that i have been playing like this all my life. >> reporter: dr. sanjay gupta, cnn, reporting. we want to update you on a story that we began the hour with. that happens to be the new developments regarding that missing child in central california. 4-year-old boy has disappeared. we'll bring you more information