The bone tools were created the same way tools were made from stone.

An Evansville police detective noted in the affidavit that the child's right hand "were missing the flesh from the top of them, exposing fingertip bones.", reports the Express US. In September ...

Small bones and large bones, jawbones and ankle bones, finger bones and foot bones and skulls. The bones belonged to strange creatures that lived a long time ago, before there were humans.