Who is John from Welcome to the Monkey House and what is their importance?

John is George Murra's son. He is fifteen and furious at his father. He keeps his cool externally, though. He both dresses and acts like a very old man. He says that when his father left, he had to become man of the house. He has sworn never to forgive his father for leaving. John attends a boarding school near the New Hampshire town. He is tricked into visiting George when George calls and says there has been a family emergency. At first unwilling to listen to George, John eventually relents when George gives him a swift kick in the butt. John slowly melts as he realizes his father is serious about getting the family back together. In the end, he cries with his father, happy to have him back.