The family of Carol Simon is grieving after she was killed while walking on Eastern Parkway near Bedford around 5:30PM on Saturday. Simon, a 35-year-old nurse's assistant, had been on her way to take her son to swimming lessons when an argument between two men became violent and one pulled out a gun. Simon and her son Kieron, 9, had driven to an Exxon to buy some things. Simon realized she forgot her purse, so......