Who is John Charles Martin Nash from A Beautiful Mind: A Biography of John Forbes Nash, Jr., Winner of the Nobel Prize in Economics, 1994 and what is their importance?

John Charles Martin Nash was born on May 20, 1059 to Alicia and John Nash. His father was confined to the McLean Hospital at the time. He was left with his grandmother while his parents traveled to Europe. He lived with Alicia after his parents divorced and began having episodes of schizophrenia in his late teens. He received a PhD from Rutgers University in 1985.