A New York financier has been killed in a shark attack while scuba diving off the coast of Costa Rica, the country's Environment Ministry announced. Rohina Bhandari, 49, a senior director at WL Ross & Co. LL, was identified by friends as the American tourist who was fatally attacked last Thursday. She was dragged from the Pacific Ocean after sustaining severe bites to her legs but could not be saved. Her 26-year-old diving instructor was also badly injured.