A slow brushing of his hair, a quick glance out of the corner of his eye, and a moment of absolution in seeing that pale face, wide eyes, and ruffled black hair.
Once L was about halfway across the room, his chains had formed into a pistol in his right hand in a split second, quickly turning and aiming at his hand, that seemed to be holding something. A bullet quickly piercing L's hand to cause him to drop the safety pin.
Light was moving before L could even comprehend it, quickly moving toward him, pistol held at ready as he then suddenly brought it down on L's head.