A spearfisher was killed on Saturday in Australia's third fatal shark attack in four weeks, police said. The 35-year-old man was spearfishing with family off Michaelmas Island near the port city of Albany in Western Australia state when he was attacked before noon local time, a police statement said. The man was brought by boat to Albany where paramedics were waiting but he could not be revived, police said. Authorities suspect a 15-foot white shark was responsible. Gregory Sharp, a commercial