You were right in not caring. I've lived in plenty of old places that harbored old people or deaths. The reality is always that that is happening all the time. It's not really special or any sort of omen since it is a common occurance. IMO, mass deaths, especially ones of cruelty or neglect, bring at least to my perception a feeling of uneasiness- Maybe scis were simply going for cheap land, but maybe it's cheap for a reason. To compound the wrong of a massacre or native boarding school by having a scientology operation scamming people (apparently the local natives at first, according to reports on Chilocco) built right on top of it seems kinda crass somehow.