The picture is all Griffin has to back up his claims. He and Ken Holyoak, owner of the plantation, buried the beast on the property and did not want to hassle with slaughtering it since the meat of large feral hogs is typically not very good.
Holyoak said he decided that the hog's head also wasn't worth keeping because it was too large to mount on a wall. He said the head has the diameter of a tire on a compact car.