"Cummings, Croslin and other family members and acquaintances -- even an air conditioning repairman that was at the house Monday -- were interviewed and offered lie-detector tests.Hardy would not confirm who had taken polygraph tests or discuss the results."
http://www.msnbc.msn.com/id/29163600/
"An air conditioner repair man who was at the home on Monday was questioned after police found out about his house call but cleared him of any wrongdoing."
http://www.foxnews.com/story/0,2933,491008,00.html
"
Detectives wrote that they followed a path that led behind the home and found what appeared to be a child's footprint in the dirt, though Cummings said his daughter's shoes were in the house."
http://www.foxnews.com/story/0,2933,491008,00.html
I wonder if Misty left the back door open, went over her brother's trailer; then Haleigh woke up in the night and went out the back attempting to go towards Misty's brother's trailer and got lost or abducted along the way? She probably knows the route to there, she plays with misty's nephews