A heroic Indiana mother was killed when she stepped in between her son and an 18-year-old gunman who had pulled a firearm on them during a Facebook marketplace sale. Jean Gragg, 40, and her teenage son were selling a watch to prospective buyer John Ford during an arranged meet-up on the front porch of their Edison Park, Ind . . Ford allegedly fired multiple shots at Gragg, who was walking up her driveway back to her home as her horrified family watched.