What were some of the key events that outraged John Wilkes booth and led him to decide to assassinate president Lincoln? Cite evidence from the text to support your answer

As the war drew to a close with the fall of Richmond on April 3, 1865, and Lee's surrender at Appomattox on April 9, there were Southern sympathizers who believed that the Confederacy could be restored. John Wilkes Booth held that belief, and it was the motive behind his plot to murder President Abraham Lincoln.