Not referring to movie messes, they were in front of a white wall at one point, mag dump ensues. Typical 556 wound channel is 6-10” of penetration and then a shockwave cavity. The second body should have absorbed a partially spent deformed bullet and spalltered pretty heavy. Video I had (now lost to a brown out failure) showed no noticeable blood whatsoever, even on slower second passes with the camera and none on the floor. Even a 5 lb chicken would have left a bloody mess in there, let alone a pile of bodies and hundreds of rounds. I’ve seen murder scenes, there is a shitload of blood splatter, some professions study the specifics of the blood spatter and deciphering what happened from it.