Who Killed Him

At 8:30 pm on Saturday night, the woman was invited to a friend's house for dinner. The security door was ajar, and the corridor light passed through the door crack, casting a bright light at the entrance. She vaguely saw the outline of a human figure lying flat in the bedroom facing the door. When she turned around and turned on the light, she caught a glimpse of a woman lying prone in the middle of the kitchen, with vomit accumulated in her mouth and nose, and half of her face immersed in sewage. The water in the sink fell along the countertop and onto the floor, making a ticking sound. She tremblingly pressed the light switch, and there were a few large dark red characters written on the wall of the living room: