In another thread, I mentioned that I wouldn’t want to wear Adolf Hitler’s pullover sweater. I know it’s been dry-cleaned, but there is still an “ick” association that I can’t get past.
With camping on a murder site, my weird-ass woo mind would say it depends on how long ago it was. Two months ago? I’d be worried (perhaps foolishly) about stumbling on to bloodstains. Two years ago? No problem.
Flat ground. Trees. Access to water. Maybe a cave. Now some sites have been built but on many old, established trails the campsites have been used often for decades or even centuries. No, I’m not kidding. When settlers came west they camped at the same spots the Indians had. There was one such spot along a trail in Mexico where one can see graffiti from Spanish conquistadors 400 years ago.
So again, there is a good chance something bad has happened there.