>> rose: tonight, another deadly school shooting. iris time, a student opens fire in a high school in a suburb of seattle. ben tracy has the latest on the casualties and the shooter. new york and new jersey impose a quarantine on health care workers arriving from west africa after a new york doctor catches ebola. reports from dr. jon lapook and jericka duncan. >> pelley: tonight from dallas, we will have the first interview with the nurses who tried to save the life of the first ebola victim. >> we offered him words of encouragement. we let him know we're here and whatever you need, we'll get it. >> rose: and steve hartman on the road with a basketball player chasing her dream. her teammates are betting she'll catch it. captioning sponsored by cbs