I just did a little reading on the mummification. No expert but I think it's a very good thing if it's true. It might lead to the cause of death.
It can mean many things. A frozen body can be mummified. Fire can cause mummification. Of course the lime can help to preserve a body, etc.. So many things can help to preserve a body. If the remains are Hailey's, which I have no doubt it is hers, sadly, her body has a chance at telling what happened & pray it will lead to an arrest or arrests. To identify a child's hand, that's signifigant after 14 months. DNA seems highly possible. But have no real facts so jmo.
Any experts on DNA and mummifications around? Sorry if I missed any answers. xoxo