Jason & Marion
As they entered there were two guys sleeping atop the bed, both on the covers looked like they might be working in shifts. He nodded to Marion to cover the other side of the bed as he approached one side. Knife in hand he knew their deaths were probably needless, but they had taken his son. His morality was turned off at that moment. Besides, they couldn't risk being followed when they left.
On his signal, he clamped a hand over the sleeping man's mouth and pressed his knife into the fleshy part between the mans collarbone and twisted the knife up, severing the carotid artery. It took seconds for him to bleed out, he barely had enough time to realize what was happening before the light faded from his eyes.