I can get a sample of the poison in its original form, easily enough. What kind of person is it going to?

[He may have said he trusts this other person, but Katherine's never met the owner of this username before now. She's a little leery on principle that it's going to a third party. Which is counterproductive, of course, to her goal. It's not exactly something she can help very easily.]

Anything is worth examining. I need ideas I haven't seen before.