My DD is 4.5 and a sensitive kid. She, too, ponders everything and will continue to ask questions months down the road. We have been able to shield her from most of the current news but I suspect that won't be for much longer. She has had some recent deaths to contend with in her immediate world and overall she has handled it well, but she definitely questions the afterlife and what is to become of the souls. We are a religious family which at least helps us answer her with what we feel happens. If she takes that as truth, I'm not sure. I'll be watching this thread and storing the knowledge for later when DD can't be shielded from the outside world.