INDIANAPOLIS — An Indiana woman whose husband and three children died when a duck boat sank last month in Missouri said Tuesday she hopes to save lives by backing an effort to ban the amphibious tourist boats. Tia Coleman, speaking through tears during a news conference in her Indianapolis home, urged people to sign an online petition calling on federal officials to ban the boats. Seventeen people died when the boat sank during a July 19 storm near Branson, Missouri, including 40-year-old Glenn Coleman, 9-year-old Reece, 7-year-old Evan and 1-year-old Arya.