Suddenly, a man, his face covered with a black ski cap like mask storms in.
"Sit down!" he yells. In his hand was a knife, though you can see the bulge of a gun his pocket. He is tall and muscular, and though you can barely see his eyes, you can feel the power, hatred, and coldness radiate from them. They are the eyes of a murderer.
Everyone in the room is immediately quiet. The man brandishes his knife at all of you, before grabbing the arm of a seven year old boy. There are gasps and protests, but these are all silenced quickly. The boy screams and kicks and cries. The man releases the boy's arm and the bruise marks are shockingly visible. Taking his knife, the man slits the child's throat. The screams die in his mouth, though they are echoed by screams in the room. One woman faints.
The man drops the dead kid to the ground. A pool of blood is slowly forming around him. "This is what will happen to all of you if you resist." You have no doubts about that. The man glares at all of you before exiting the room and locking it shut.