Italian mafia devised the method first. Will only leave the teeth, for some reason.
Read once an article where it was stated these “special purpose” pigs were kept hungry for a few days before a disposal, for faster results, and could even be used as a torture method, as the animals would attack any human figure on sight, dead or alive.
Now imagine slowly lowering a live human being into a pig pen full of these quasi feral animals, feet first.