A Massachusetts woman used a kitchen knife to stab two of her children to death and later told police it was part of a Voodoo ritual, authorities said Tuesday. Latarsha Sanders, 43, told police she attacked her 8-year-old son, Edson “Marlon” Brito, with a kitchen knife as part of a ritual but failed, so she attacked her 5-year-old son, Lason Brito, assistant Plymouth District Attorney...