Two Niagara Falls families are mourning the loss of a child after two weekend shootings took the lives of 19-year-old Jayla Brown and 22-year-old Jalin Rios."Im actually numb right now," Jaylas mom, Carretha Brown, said. "You took somebody who had a life worth living.""I thought I had been sent the wrong name," COO of the Niagara Falls Boys & Girls Club Joelle Water said. "The loss to the community here will be for a very long time."Police say b…