 All of the interactions with Dawn and the rest of the family were fabrications that stemmed from Matt's guilt of running over the young woman years earlier and Matt at this point as become totally deranged and paranoid.Sheriff Harding follows some leads that Matt told him earlier into the woods and to the old Franklin house which is unoccupied and in disrepair (confirming that Matt's "trial" was indeed fabricated in his head).Harding finds Jim's dead body and then chases Matt through the woods to arrest him, only for Matt to run onto a main road where he is run over by a speeding truck and killed.