Okay, this may be a bit graphic, but. . .First, let me say dismemberment is easy if you know where the joints are. I can do a chicken in about 20 seconds. Secondly, if the body is frozen it's even faster, with little or no blood.
After that, throw some bleach over the whole area and be done with it. Bleach will flouresse under luminol the same as blood. Who can tell the difference? No one.
Hate to be so graphic, but it ain't that hard if you have the stomach for cutting up humans.
