Who is this person?

[RJNorton]

Excellent, Eva! Crook was a Washington policeman who was assigned as a White House guard starting in January 1865 and remained as a White House employee long after the assassination.

According to Crook, as Lincoln left for Ford's Theatre, he turned to Crook and said "Goodbye, Crook." Before, Lincoln had always said, "Good night, Crook." Crook later remembered, "It was the first time that he neglected to say ‘Good Night’ to me and it was the only time that he ever said ‘Good-bye’. I thought of it at that moment and, a few hours later, when the news flashed over Washington that he had been shot, his last words were so burned into my being that they can never be forgotten."

According to the late historian William Hanchett, Crook's reminisces are in the myth category.