Spearfisherman killed by suspected 15-foot shark after third fatal attack in less than a month

A 35-year-old spearfisherman was killed by a suspected 15-foot shark off Western Australia's Michaelmas Island, marking the third fatal shark attack in the country in less than a month. Other recent fatalities include a 39-year-old and a 38-year-old spearfisher killed by sharks in May, and a 12-year-old boy in Sydney Harbor in January.