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					Originally Posted by  Parallex
					 
				 
				Single gunshot wounds to the head would be my guess. Probably ran out of food and could hear/see that the search for them was still ongoing so they shot themselves (or one shot the other and then himself). 
			
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If they could see/hear the search then they would have heard the gunshot.
  
 They have either been dead before the search happened, or they died quietly.