Dr Anna Sullivan crawled into the rubble of the CTV building to amputate a survivor's leg. One hundred and forty-nine people were in the CTV building in Christchurch when it collapsed in the February 2011 earthquake. Of the 34 people who made it out alive, no rescue was more complicated than that of Kento Okuda. His chief rescuer has largely stayed out of the limelight since. On the 10th anniversary of the earthquake, she talks to Michael Wright. Anna Sullivan looked into the dazed eyes of Kento Okuda and did her best to reassure a kid who spoke almost no English before he succumbed to the anaesthetic.