Several world leaders have condemned the shooting at Donald Trump's rally in Pennsylvania, in which the former US President was shot in the upper part of the ear. Trump returns to the campaign trail Monday as the star of the Republican National Convention in Milwaukee -- a gathering meant to fire up the grassroots that has instead been overshadowed by the weekend attempt on his life. On LRC, we ask the most pertinent questions. What is the latest on the investigations? How could a 20-year-old Thomas Matthew Crooks get just 130 metres away from Trump? What is the political fallout of all this?