Powerful storms stretching from the U.S. Gulf Coast to the Great Lakes in the north wrecked two small towns and killed at least 28 people as the system tore roofs off schools and homes and damaged a maximum security prison. It was the second deadly tornado outbreak this week. At least 28 people were killed, including 14 in Indiana and 12 in Kentucky, authorities said. In Indiana, Marysville was leveled and nearby Henryville also suffered extreme damage. Each is home to about 2,000 people. "Marysville is completely gone," said Clark County Sheriff's Department Maj. Chuck Adams. Aerial footage from a TV news helicopter flying over Henryville showed numerous wrecked houses, some with their roofs torn off and many surrounded by debris. The video shot by WLKY in Louisville, Kentucky, also shows a mangled school bus protruding from the side of a one-story building and dozens of overturned semitrailers strewn around the smashed remains of a truck stop. An Associated Press repo...