For three years at their home in the historic town of Bergen op Zoom in the Netherlands, Omar and Cissy Dekker began each day the same way: waking their teenage daughter, Iris, lifting her out of bed, and trying to coax her into a life she no longer wanted.When Cissy, a former forensic nurse, asked Iris what else she could do for her before leaving for work, the answer never changed: “Can you put a pillow over my head so I can die? Please make m…