If I were Teckademics, I would:
1.) Put Redcoat in a preheated oven
2.) Slit his juggular and pour gasoline all over the wound.
3.) Disembowel him with a Bic, then promptly utilize the same tool to stab him in the aorta.
4.) Bludgeon his cranium with a rusty lead pipe in hopes of causing severe blunt trauma to the brain, spinal nerve cord, and of course the cranium itself.
5.) Inject the Botulin bacteria into your spinal cord.
6.) Mummify you with barbwire, and fuck you with a knife.
7.) Peel him like a pig.
8.) Apply sandpaper to your epidermis, soak the wounds and watch the onset of putrefaction.
9.) Excise the brain tissue through the nasal cavity(s) and fill the cranium with maggots.
10.) Butterfly the genitalia and, after carefully cutting an incision down the stomach, insert the genitalia into the stomach.
11.) Cause severe abrasion to the cornea/retina/iris of each eye, until the retinal fluid seeps through your eyelids.
12.) Destroy all dental records/teeth and burn the fingertips off to avoid possible identification of the corpse.
13.) Leave the body in a dry environment (i.e. the desert) for optimum decay of all tissue, within about 6-10 months even the bones turning to dust after being picked clean by the vultures.

That's just me, but hey, what would I know about killing people who piss me off?