They have whole-house video survelience but not one freaking alarm anywhere? They are fools of the highest order! Hope they enjoy the home movies over and over again.
As for the burglars (not robbers) - they wasted a lot of time standing around looking and talking, as opposed to even trying to take anything. Which makes me highly suspicious of the whole incident. "Broke" in his back door, but no video showing it happening (Hey! I thought it was "whole house" survelience.) or of the damage afterwards? Burglars basically walking back and forth in just the livingroom? All happening at 5AM - when lots of working folks are either getting up or getting close to when the alarm goes off?
Sorry, but I just cabnot work up too much sympathy, and I cannot get past my sense that there is something just not right about the whole thing.
stay safe.