https://apnews.com/4724357f212c4199b758bd702444b561

CIUDAD CUAUHTEMOC, Mexico (AP) — A pair of rubber-gloved hands carefully separates the red "Evidence" tape from a paper bag and empties the contents onto a table. Hundreds of burnt bone fragments spill out.

The fragments look like bits of volcanic pumice. Yet for the hands that gently smooth them out over the table top, each one bears a name and holds a piece of a story that nobody knows, but that someone, somewhere is desperate to hear.