An Escambia County, Florida, woman is accused of killing her son and stabbing her daughter on Tuesday, while her two grandchildren watched in horror. Pensacola News Journal reports that Janel Charlene Francis, 45, allegedly stabbed her daughter, Gabrielle Torrence, 24, in the neck, and fatally stabbed her son, Devan Francis, 18, at the Heritage Oaks Mobile Home Park on Gulf …