Britain mourns murdered MP, EU referendum campaign suspended

By Elisabeth O'Leary and Paul Sandle BIRSTALL, England (Reuters) - Britain mourned Member of Parliament Jo Cox on Friday after a man wielding a gun and knife killed the 41-year-old in an attack that has thrown next week's referendum on European Union membership into limbo. Cox, a supporter of Britain staying in the EU, was shot and stabbed on Thursday by a man who witnesses said shouted "Britain first" in her own electoral district near Leeds in the county of West Yorkshire in northern England.