“Why waste time with tying the rope. A simple bullet to the brain and tossed into an incinerator.”
Bullets are expensive and are a one-time deal. Rope can be used over and over again. It is a matter of return-on-investment. ;-)
A sledgehammer is a one time purchase.
Actually, in this guys case, I’d like to throw him in a pig stye and let the pigs take care of him.