The parents of Callum and Jake Robinson travelled to Mexico to identify the bodies of their childrenFollow our Australia news live blog for latest updatesGet our morning and afternoon news emails, free app or daily news podcastThe parents of two Australian brothers murdered while on a surfing trip in Mexico say the world has become a darker place since their deaths.Originally from Perth, Callum Robinson, 33, and his brother Jake, 30, were on a surfing trip with their American friend Carter... Read this story