I was initially thinking around the 1 month mark while he was on another contract being the most recent that he has seen/heard of something Gaath had done. I was thinking about him hearing about a being capable of melting people on the various contracts that he took for the past 4 months but he dismissed them until either seeing the aftermath (seeing the puddle of a former person) or witnessing Gaath melting someone while on the contract in question, though I'm still unsure about the possibility of the person in question being the person he was targeting. In that case, a location of where Gaath was would help him recant that story to the deo'iel.

M3