Lincoln's Assassin Escaped?

I've been watching the series "Brad Meltzer's Decoded" which is well worth your time to watch. Recently I watched the episode on John Wilkes Booth and the theory that he was not killed in a barn by Union soldiers. Instead the group chases down the possible aliases of John Wilkes Booth and the stories told by several people on why they believe he lived nearly forty years after Lincoln was assassinated.