Did you see the commercials for this episode? They showed the first bomb going off and said something along the lines of "the first blast with stun you." Then they showed the grenade falling down off the coroner table and said something about that plot twist. You know what CSI: Miami? If you show us all the plot twists, it's impossible for them to "stun" us. Remember the days when TV shows (and movies) actually didn't show the important parts of an episode?