The very moment that Marilyn had succumbed to sleep, Artemis looked to Eros and passed a glanced to Marilyn. A soft smile adorned his lips, and the words that flowed out of them were just as gentle. "My good sir Eros, please look after lady Marilyn while I dispose of our guest here, as well as his accomplices." As he finished speaking, he jammed the rest of the blade through his wrist, eventually popping out on the other side, covered in blood. His wrist twisted, twisting the blade in turn and moving the tendons and whatever was left of his wrist. By now, the pain would have been too much for him to bear, having just lost his hand in a violent and painful manner. Not to mention he was being constricted by a python who was most likely pressing the last of the oxygen in his lungs out and snapping a few ribs to go along with it. 

With a quick pull, Artemis yanked the blade out of his wrist and slashed his neck in a quick motion. His body became limp, releasing Marilyn and only giving Artemis so much time to catch her. He was physically unable to care less about the man he just killed, and let him drop to the ground as he set his master on her bed. As much as he hated to leave her dirtied and bloody, he needed to catch the others and remove any trace of their presence from the estate first. 

With a smile, he pet Eros and exited the room out the door, but only after he shut the window letting all of the cold air in. 

He had some people to catch.