BROKEN ARROW, Okla.—People flock to the Tulsa suburb of Broken Arrow for its idyllic low-crime and low-drama scene. A lush green belt encircles the Indian Springs III subdivision, where residents zoom around in golf carts and silver-haired homeowners are usually home to take delivery of the mail.
But neighbors there struggled Thursday to make sense of the horrors discovered in a gray barn-like home of a family of nine — the parents and three children stabbed to death and a fourth child wounded but alive near the front door.