Friday marks day four of Operation Justice for Zion, an extensive search effort at Pine Tree Landfill in Lenox Township to find the missing 17-year-old.
Police say they believe her remains are buried in the rubbish.
White says the operation will be long and difficult due to the heat and potential biohazards.
White says crews were able to dig out 20 feet of layers above the focused area.
But one hint is standing out to Chief White.
Phase one of the search is expected to conclude June 15.
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