I agree that it would be great if the cameras captured images of the killer, but I am also thinking that if there were pics that we would have at least heard rumors of that by now. ( I realize that the post I quoted was written several days ago.)
If they don't have any pics of the killer, that could be very telling as well. It is not very likely that a total stranger would know where the cameras were, so if they were able to avoid the cameras, it would have to be someone who had spent enough time in the home to scope it out. Could be someone like the cable guy, an exterminator, carpet cleaning service etc.
Another thing...what about the virus I've read about that turns your computer's camera on even when you aren't using it? Could it be that someone was watching them thru their own video cam without their knowledge?
Forgive me if I'm missing something, I confess I haven't finished reading every page of this thread yet.
MOO