Who is the Real John Wilkes Booth‪?‬

John Wilkes Booth murdered Abraham Lincoln at Ford's Theatre and was killed in Garrett's Barn, Virginia by Sergeant Boston Corbett. But what if the body wasn't John Wilkes Booth? Nate Orlowek believes the body in the barn that day may not have been John Wilkes Booth. So who was the man in the barn that day?