The mourners had gathered in the small village of Vero, a half-hour drive from Ajaccio, the capital of the picture-postcard Mediterranean island of Corsica. In their midst was former nationalist leader Alain Orsoni, 71, who had flown in from exile in Nicaragua to bury his mother. Suddenly, with the ceremony under way, a single shot was fired from nearby scrubland, killing Orsoni instantly. Thirty-five people have been fatally shot on this island of 350,000 people in the past three years alone,