Make sure its someone i dont know and dont have any connection. Murder them in the woods when its dark, silently, nice and easy. Then drive my van hundreds of miles away from the murder scene, go to abandoned area, forrest specifically. Dig a hole thats very deep. This would take days so thats why i packed snacks and drinks in the van. I continue doing this for as long as necessary. The body has slowly started decomposing, the smell is awful. Despite this I continue. Its finally deep enouhh, I throw the body in, place all the mud back in. Cover it with anything thats green. Leave and continue my life while reading about this missing person for years. Im now on my deathbed, I confess the crime I made. I die shortly after.