In The World This Week: The death toll continues to rise in Nepal after the country's worst earthquake in decades, six police officers in the USA are to be charged in connection with the murder of Freddie Gray whose death sparked mass riots this week in Baltimore, a group of novelists are boycotting next week's PEN Club gala over the honouring of French satirical magazine Charlie Hebdo, and the UK is less than a week away from its most uncertain election in recent history.