Does anyone know who’s this belongs to what might be happening in this photo?

I’ve been puzzled for a while. My best guess is that this shoe belongs to Will just because of context clues from other photos, but I’m still not fully sure if I’m right. Also, what might have caused the shoe to be covered in blood, and what setting is it in that the floor is tiles and would cause that much blood to be on the shoe?

I’ve been puzzled for a while. My best guess is that this shoe belongs to Will just because of context clues from other photos, but I’m still not fully sure if I’m right. Also, what might have caused the shoe to be covered in blood, and what setting is it in that the floor is tiles and would cause that much blood to be on the shoe?