Large pool of blood is found in the center of a room with a tile floor. there are zigzagging, arc-like bloodstains on one wall with drops of blood 1–4 mm in size and drips running down the wall. on an adjacent wall, there is a neat horizontal line of 1–4 mm drops of blood stretching across the length of the wall. from the center of the room, stretching to the door, there is a line of 4–6 mm blood drops that are slightly elongated. based on this evidence, which is the most likely seque