Answer: The best way to dispose of a body is to fed it to pigs. they eat everything. Teeth, nails, etc w/o leaving any trace at all. Or if you want to be really crafty you could mix chemicals into a bathrub/plastic bin that disolves everything into sludge and dump into a drain or river. But the ONLY way to kill someone in 2020 w/o getting caught is to kill someone completely random. Someone you've never spoken to at all. good luck lol
I mean if you take out someone’s lungs and their intestines and burn them you wouldn’t be able to find the rest do the body if you threw it in the water and it were to decompose and rot over time. (I learned this from crime shows so don’t come for me XD)
Ralph and Piggy go to the pig roast because they didn't want Jack and his tribe to do anything bad. It's prophetic because it foreshadows that something bad is going to happen.