LightOfMidnight says:
Ruuna will be standing t the entrance of the room, giving the others space to work, gaze flicking over the floor and ceiling for anything odd. As the guard who brought them asks if the need anything her gaze flicks to him and she speaks curtly.
'Did you know him? Or know or did? It would be good to know if he was acting differently in the lead up?'"Aye, I knew him. That was Overton, a buddy of mine. He was not acting strange at all, but he was a very private man. He liked to be alone when not on duty. He was a good man too. Sad, that he's gone...".
Ruuna, you can see that the guard feels remorse over Overton's disappearance. And he seems to be honest.