Oh I think Jack Crawford knows a great deal more than he lets on. False sort of blindness... much more effective.

[ His fingers drum again on the armrests of his wheelchair as he wonders, had he trusted Jack Crawford just a bit more, if he'd had still succumbed to the fate he had. ]

Might not be about what she knew, but about how she knew it. Or-- [ He doesn't know Beverly, so he can only speculate from Hannibal's side of things... assuming the two people are related. ] What she did with it.