My two-year-old only reached for her cousin’s toy—then my sister-in-law flung a cup of scalding coffee straight into her face. As my baby screamed in agony, my in-laws pointed at the door and shouted, "Get that child out of our house right now!" While doctors treated her burns, I made one call to my father and whispered, "Tomorrow, we end them." But they had no idea what was coming.