Baran looked up, a little annoyed by the engineer's levity.  Murder in his sick bay had a tendency to drown his spirits.<br/><br/>"Masterson," he said, pausing the video screen as it closed in on the moment of Dr. Frances's death.  "Have you seen anything unusualy lately?  Maybe...strange behavior of any kind?"<br/><br/>The way Dr. Silver was standing Masterson couldn't see the blood-stained, linen-covered corpse of his former supervisor.