but, clearly, music may be a wormhole into his heart and mind. ♪ ♪ as a thank you, david arranged for a private cello performance for ronan. but ronan's family says all thanks should go to david and the handel and haydn musicians who made that moment possible. they say just hearing ronan's reaction, after being told for years he might never engage. ( applause ) what more can you say but thank you. and wow. >> what do you think? >> reporter: steve hartman, "on the road," in boston. >> dickerson: wow is right. that's it for the cbs evening news. i'm john dickerson. thanks for watching. good night. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org