How can you not feel sorry for him and his family when they were there when it happened?
It's a terrible experience, probably even worse than for an average person considering the robbers have much more to get and are ready for everything. The poor kid and his wife must be scared to death, they will probably always have consenquences for this. Living in a home that is robbed is different experience and you never feel safe again, even if you are not soft person in general.
My neighbour experienced the same and both his kid and wife are scared to stay home alone after even during the day. My place was also robbed once, but at least I wasn't there during the robbery, but it's still different living there after you know it happened.