Southwark Playhouse Borough, LondonJohn Wilkes Booth's killing of Abraham Lincoln is skilfully examined in an absorbing play about the cyclical nature of political violence 'Why did you do it, Johnny?" asks the Balladeer in Stephen Sondheim's Assassins, which forced John Wilkes Booth to share the limelight with a slew of other slayers. Now Abraham Lincoln's killer explains himself at length in Land of the Free, a def…
