Besides this being a good story, I have trouble understanding a part of it. If somebody is born both blind and deaf (not assuming that this guy was), how can they initially be taught anything? How can you communicate with them enough to teach them sign language (to feel with their hands) or what letters and words mean?
https://www-m.cnn.com/2018/06/23/us/teenager-helps-blind-deaf-man-during-flight/index.html
https://www-m.cnn.com/2018/06/23/us/teenager-helps-blind-deaf-man-during-flight/index.html