I'm currently in the process of developing a Lincoln Assassination walking tour of DC to coincide with the 150th anniversary of the event this coming April. I'm in research mode at the moment and my brain is absorbing all manner of interesting stuff. Here's a few factoids you may not have known about Lincoln's assassin, John Wilkes Booth and his prior connection with Abraham Lincoln...
1. Booth once slept in the very same bed which Lincoln died in. In March of 1865, a fellow actor and colleague of Booth's named Charles Warwick rented a room in the Petersen House - the home across the street from Ford's Theater where Lincoln would ultimately be taken on the night of his death. While visiting Warwick in March, Booth took a nap on the bed where Lincoln would expire a month later on the morning of April 15th, 1865.
2. Booth once performed in front of Abraham Lincoln at Ford's Theater. In 1863, President Lincoln and his wife enjoyed a performance of the play The Marble Heart at Ford's Theater, in which Booth played the villain. A Mrs. Clay attended the theater alongside the Lincolns and noticed that Booth directed several threatening lines directly at the President. She remembered, "Twice, Booth in uttering disagreeable threats in the play came very near and put his finger close to Mr. Lincoln's face. When he came a third time I was impressed by it, and said, 'Mr. Lincoln, he looks as if he meant that for you.' 'Well,' he said, 'he does look pretty sharp at me doesn't he?" The President was reportedly very impressed by Booth's performance.
3. Booth's brother Edwin once saved the life of Lincoln's son, Robert. Edwin Booth (a Lincoln admirer) was John's older brother, and was among the most preeminent and recognizable stage actors of the age. Sometime between 1863-1864, Edwin rescued Robert Todd Lincoln (eldest son of Abraham) after he fell into the path of an oncoming train. Here is Robert's remembrance of the event,