Well, it is unbelievable because the story is so screwy.
1) No witnesses
a) nobody saw anything
b) nobody heard anything
c) not on video
2) Nobody knows how she go her significant "head injury"
3) Hogs virtually never attack unprovoked
4) Only 4 known deaths from feral hogs since the 1870s and 3 were by hogs wounded first by hunters (hence were provoked attacks)
5) Feral hogs usually run/move away from humans and vehicles
6) It was a very short distance between the victim's car and the door
7) Nobody ever said what the evidence was that the COD was due to hogs