JWG
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Reading this thread I had a terrible vision flash through my mind. What if tot mom put duct tape around Caylee's head to hush her crying and left her hands free. Don't know what happens to fingernails after decomp, but could it be possible that they found fingernails with either duct tape residue, or even dna evidence from a fight she may have had with her killer and that is some of the "overwhelming" evidence??? I know it's terrible to consider, but thoughts anyone? Could fingernails indicate chloroform?
Good question. I found this answer from Argonne National Laboratory:
Fingernails and claws are all made of principally calcium carbonate or similar compounds. Decomposition of fingernails is similar to any living material. These calcium compounds will dissolve in weak acids, much like we find in soil and many parts of the environment. This process will not take too long except in extreme environments.