I'm going against my better judgement to post this but I guess I'd have to say if I were gonna kill someone i would have 3 different ideas 1. Pigs. Pigs eat anything and three really hungry pigs will eat a good sized male in about 45 minutes and yourself a 4th pig and chop the cadaver up and you're going to decrease the time. Number 2. Go out into the sticks and burn it but inside of a tractor tire. You'll have to find a good place out of the way for this one BUT the rubber smell will mask the burning flesh smell and honestly once you throw the match on that tire the chances of anything being in the middle by the time it was put out/ went out would be very slim. The 3rd and final way and this honestly is probably the best...do not hide it...there are ways of killing people so that noone would even know that their death was malicious..as long as you kept to yourself and were able to cover your tracks. I wont go into further detail because for all I know your hiding a body. Lol in any case I left out quite a few steps and these are just my own thoughts except for no1. Which was something I heard then had to Google but still would stand by coming from growing up on a farm.