If you google "Rocklyn in Carnkie", the first articles that appear mention cruel and senseless murders committed in 2000. The views and B&Bs in the sleepy, scenic west Cornwall village take second place. The villagers had seldom seen a police officer in the area, if at all. There was never any need for one to visit, let alone patrol — it was that kind of place. But in the autumn of 2000, officers swarmed a family home at midnight when five people went missing…