next on "cnn heroes," sarah silverman honors a feisty champion for children. and later, mariska hargitay. and a truly moving musical performance by sara bareilles. [ nurse ] i'm a hospice nurse. britta olsen is my patient. i spend long hours with her checking her heart rate, administering her medication, and just making her comfortable. one night britta told me about a tradition in denmark, "when a person dies," she said, "someone must open the window so the soul can depart." i smiled and squeezed her hand. "not tonight, britta. not tonight." [ female announcer ] to nurses everywhere, thank you, from johnson & johnson.