Paranoid of an angry mob I wonder? Worried about 'messages' being hung on fence or a drive-by egging? I think it's speaks volumes about BC clan mindset at the time. They thought media were picking on them too before heading off on holiday. If all above board & innocent, why worry about GBC's rental? It's a good area - the flowers that adorned the front fence line were a testament to that. Why would home security even enter NBC's head? Aren't there bigger things to worry about (ie funeral, well being of your grandchildren, what the future holds in general). Why the fear of backlash? I think they were reading some of the angry sentiments posted in various online forums or maybe feared amateur sleuths would come investigating (or media).
How long was GBC's house taped as a crime scene? If so concerned about security NBC/EBC/OW could've slept over... unless there was a reason they couldn't stomach sleeping there?
MOO