No. No weapons other than the scalpel that was used to stab Claire. No, for him it was like his head was...slammed against something, not just sliced open.

[ Liv doesn't know if she's making a case for Claire's accusation or not, but she's giving as much information as she can and idly opens a cabinet, taking out an ice pack, activating it, and putting it against her bruised face from the injuries she managed to get at home. ]

Whoever it was left the guy in the chair to watch, killed Claire first, then left Fitz as a witness to it all, alive. But he hasn't given a description at all as far as I know.