Of course he didn't. He'd killed them, and not without letting the full gravity of the situation hit them on their way out of the world. The only one that had needed to do the mourning was the mask of 'dutiful son and victim'. If Lyon was going to latch onto that facet of Riff's mask he was free to.
Riff shook his head. "I finished my mourning a year ago. I'm no broken wreck. I am a contractor for Nelabasis, after all, unpleasant business is a way of life. That's the present, not people who won't come back or have any bearing on the now."