Montiel said the accident is still under investigation and that officers won't have a clear picture of what happened until all witnesses and victims are interviewed.
Meanwhile, friends and fellow students at St. Francis have held prayer services for Hansen and are remaining optimistic.
"There is hope," said senior Allison Foraker, a friend of Hansen's.
Hansen's Facebook page is filled with messages of love and well wishes from family and friends.
The 17-year-old varsity water polo player has been offered scholarships to both University of California at Santa Barbara and the University of Michigan.
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