Others spoke in numbing detail about the chain of custody regarding Todd Summers' tissues, and how they were preserved, prepared for testing, and analyzed.

A little part of the tissue is taken, it's cut, uh, and then it's weighed.

That is Todor Todorov, the chemist who tested Todd Summers' tissues.

The tissue is digested in, uh, nitric acid, and the resulting solution is analyzed by inductively coupled plasma mass spectrometry to get the concentrations of the various metals.