mara shiavocampo, abc news, new york. >> the mother's attorney says it was three hours before they finally sorted out and the boy was finally returned to his mother. >> pretty frightening to be at the gate and not see your kid get off the plane, especially when you pay the $100 fee to jetblue. they refunded the ticket. gave a credit for future flights. >> she said the attendant came had no idea who the boy was. glad everyone is home safe and sound. she said she was told the boy was safely returned to boston. we'll be right back. boston. ? have the opportunity to teach grownups a thing or two. >> but this morning we're finding out how one 9-year-old boy was able to put his imagination to use, changing the life of one very grateful teacher. here's abc's matt gutman. >> reporter: the more conventional storyline is a little boy is born missing part of his right arm. adult graduate students create one for him. it's 9-year-old whiz kid making a 3d hand for a grown-up. >> prosthetic hand day eight. >> reporter: he has his own business, brother robot, specializing in 3d printing. one day last spri

mara shiavocampo, abc news, new york. >> the mother's attorney says it was three hours before they finally sorted out and the boy was finally returned to his mother. >> pretty frightening to be at the gate and not see your kid get off the plane, especially when you pay the $100 fee to jetblue. they refunded the ticket. gave a credit for future had no idea who the boy was. glad everyone is home safe and sound. she said she was told the boy was safely returned to boston. we'll be right back. boston. ? ? >>> it's not often that children have the opportunity to teach grownups a thing or two. >> but this morning we're finding out how one 9-year-old boy was able to put his imagination to use, changing the life of one very grateful teacher. here's abc's matt gutman. >> reporter: the more conventional storyline is a little boy is born missing part of his right arm. adult graduate students create it's 9-year-old whiz kid making a 3d hand for a grown-up. >> prosthetic hand day eight. >> reporter: he has his own business, brother robot, specializing in 3d printing. one day last spring a teacher poked