TALLAHASSEE, Florida: A gunman opened fire at a major university in Florida early Thursday, leaving three people injured, before officers killed the shooter, police said. The latest episode of America’s epidemic of gun violence, happened just after midnight at Florida State University in the state capital Tallahassee. A gunman opened fire outside a library, and when challenged by campus police to put down his weapon, he declined and was shot dead, Tallahassee Police Department spokesman David Northway told reporters.