Author Karen Joy Fowler thinks John Wilkes Booth craved attention – and that he's gotten his fair share of it. So her new novel, Booth, instead focuses on his family. Their history might surprise you, given how John turned out. His grandfather was a part of the Underground Railroad. Fowler told NPR's Scott Simon that because of all we know about Booth's family, the path that John took is one of life's great mysteries. And, no, she hasn't solved it.