I have been told that the state police have been canvassing since Monday. I didn't see any police cars when I was there. Very few people here knew anything about this case until the helicopters showed up! The resident I talked to had not heard anything. I feel badly now that I had not posted sooner on the Nextdoor Charlestown site, which is how I got in touch with her. Another factor is that cars registered in PA only have a license plate on the back. If a car is backed into a space, you can't see the tag just driving by.
The parking area is for visitors. Each house has a driveway and garage. There were also cars parked along the street. It wouldn't be unusual, I think for "strange" cars to be there.
It is also a new community and has a lot of turnover. There was a moving van there today and I noticed a couple of "for sale" signs. There are empty-nesters, like the woman I talked to, and first-time owners and a pretty large number of immigrants from Asia. Lots of variety.
I didn't think to look for cameras. I would guess that there is one by the pool and clubhouse.
As far as I know, prior to Monday there was no canvassing by police anywhere. I have been trying to get local reporters more interested, but it isn't working.