The President of the United States likes to relax after high tea. Well, who doesn't like to sleep after an afternoon snack? So at this point, Valentine walked into his bedchamber with the words:

"Wake me up in 30 minutes.."

And after locking the door, he lay down comfortably on the bed, peacefully folding his hands under the pillow.

You had a mission to kill him and he didn't know about it. So you get out of the closet standing in his room and slowly approach him with a knife..