I have a lot of snapping turtles on my place, some big enough to do that with. I have a mental problem eating them cause you ought to see what they eat around here, dead critters mostly. I worked with a guy years ago who put them in a galvanized metal stock tank big enough that they couldn't get out and he fed them coffee grounds (I swear) for a couple of weeks. Then he cleaned them and ate em'.
I will watch these videos tomorrow when I have more time.