BATON ROUGE, La - Several tornadoes lashed southern Louisiana and Mississippi, killing at least three people and injuring more than 30 as the storms destroyed dozens of homes and businesses and toppled a water tower, weather and emergency officials said. Hardest hit in Louisiana was the Mississippi River hamlet of Convent, where 90 percent of the estimated 160 mobile homes at the Sugar Hill trailer park were demolished, state police superintendent Colonel Mike Edmonson told a news conference. "This is some of the worst damage that I've seen in my 36 years with the state police," Edmonson said.