Had a random creepy thought today that Peter Sutcliffe might have never have been caught if he had been committing his crimes in a remote part of America rather than (mostly) northern England.
This of course could apply more generally - logically, serial killers operating in big, empty areas (e.g. Wyoming) would be harder to catch than those in well-populated areas such as, for example, West Yorkshire or Greater Manchester. But, do the stats support this?