Police theorized that the family may have died as a result of Kenneth Martin crashing their vehicle into the river, while another theory held that the family had been abducted and forced off of a cliffside into the river.
警察は、一家は、ケネス・マーティンが車を川に突っ込ませた結果、死亡したかもしれないと理論づけ、また別の説では、一家は誘拐され、崖の側面から川に無理矢理突き落とされたと考えた。