"That he was working in the lab. I think." And Pepper could correct him if he was wrong, since he had only heard about this mess when worry started to build that Stark was actually missing, not simply absent.
What had been in the pill bottle? That was what he'd been hoping someone else could figure out when he picked it up and pocketed it. "Not sure." Another glance to Pepper. No one in the base had seemed particularly sure what had been in the bottle before it was empty. Stark might have kept it secret. Maybe he was taking something on the quiet, or developing a new drug on his own time. He couldn't recall drugs being a particular interest of Stark's, however. Out of the Avengers, Banner would have been a better candidate for that particular branch of science. He shook his head when Penny asked what they could remember about it. "Could it have caused this?" He didn't know any drugs that could produce this effect, dead but preserved. He didn't hope Stark was alive - hope, in itself, didn't make much sense to him, logically driven by evidence and result. But it did merit investigation.