One thing I like about CSI episodes is the animation that the editors put together to explain what the events. And week after week, they don't fail entertaining me with the effects that they put in in every episode. For that, I thank them!
All in all the episode is realistic. Good people die in bad situations too. In this case, a cop and the kidnapped victim. It's a sad fact. I only found one unrealistic scene in this episode, it's when Callie first entered the apartment of the kidnapped victim's daughter. I think she should have been last to enter the apartment since she was more of a CSI than a cop. But then, I may be wrong.