 In September 1510, a group of Dominican friars arrived in Santo Domingo led by Pedro de Córdoba; appalled by the injustices they saw committed by the slaveowners against the Indians, they decided to deny slave owners the right to confession.Las Casas was among those denied confession for this reason.In December 1511, a Dominican preacher Fray Antonio de Montesinos preached a fiery sermon that implicated the colonists in the genocide of the native peoples.