Feeding them to the pigs will work. It absolutely worked for Robert Pinkton.
He was a bold mutherfuker though. He'd march right into the police department and flame them for disturbing his home with surveillance and searches.
He had a big mouth though, and couldn't keep his mouth shut around undercovers.
Honestly, I'd really think about what is compelling you to rape and murder this person. Once you figure that out you will no longer be under the control of influences that are obviously steering you towards less than productive/fun/carefree experiences.
BTW, picktons mother was a total bitch. That's what drove his hatred towards women. Guys family was loaded, he was seriously rich, and look what he chose to do with it.
Goes to show, money doesn't make someone creative, charming, ambitious, or fun. Your mother does.
Mind you, the guy used to crawl into the carcasses of pigs to escape his mothers never ending bitching. So, all that bacteria probably really made the guy totally fukin stupid.
OP, go have a shower.