Because of his age, officials are not sure if Longenecker died as the result of a heart attack before the machine ran him over, and are awaiting an autopsy to determine the cause of death, according to the Reading Eagle.
State police also found 10 marijuana plants growing in the area where the men were seen.
Light, 54, was arrested and charged with possession with intent to deliver a controlled substance, trespassing and conspiracy, according to the Reading Eagle. He was released on $25,000 bail.
The names of the bulldozer operator and the trooper have not been released.