How about this? Go review all the surveillance video.
Nice idea though I believe the hard drives delete like log files automatically data past a percentage of hard drive filled the oldest data or if it's removable old media it needs to be swapped out like old data backup tapes used to do. If auto then maybe have 60 days since that is a huge amount of data and the drives just autoclean the old files past a certain set date so at day 60 when finished the day 1 of that cycle is deleted and then day 61 is added even on a different part of the drive and day 01 is used for stuff like swap or temp till it's needed again so it's creates a moving empty and filled area so the same areas of the drive are not overwritten only and then say you used 33% of the drive that 33% is moving toward the center of the disks if only used as storage and an SSD is used for OS and program to control cameras. This method extends the useful life of the drive not using the same blocks to write over and over and instead shifts the drives writes to unused areas of the disk. So it would be good if there was a drive or if saved online with password so he could access online logs. I would go to famous sites that do news and or reddit and see what the last entried in world or local news that is a category and then check the links on health, religious headlines and people disappearing without a trace. Only reddit though since the amount of users that someone would link to something viable since that man likely does not know Poal or Voat or other sites not liberal. Facebook would be useless as in to much shit to get past to find anything useful and factual. Using a search engine that is not filtered to extremes to see what the headlines are. I'd also search headlines online from any website like a local paper that gives the feel of what the residents are experiencing. Or type in catastrophe in the search box and let it find it for you.
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