Figuring out the time of death from remains can be challenging for investigators. Still, new research looks at how the biomolecules inside our bones can give a more definite answer, even decades after death.
“These skeletons may have been out in the field for one year, three years, or various time periods,” Dr. Sheree Hughes, the director of the Southeast Texas Applied Forensic Science Facility , said.
“At the moment, there is no reliable method to be able to determine time since the death of bones,” Hughes said. “After that time, when all the soft tissues have decomposed and have gone, all we’re left with is the skeletal remains and the bones there. They don't decompose in a very predictable pattern.”
The researchers are looking at biomolecules inside bones for post-mortem-interval and age-at-death estimation. “So far, I’ve sampled over 100 different portions of bones,” Procopio said. Her team takes fragments of the bones sent to their lab and uses technology and machines to separate each biomolecule.
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