Open this photo in gallery: A protester lights a flare during a rally called by the French ultra-right group 'Les Natifs' at Place du Pantheon in Paris on Dec. 1.GEOFFROY VAN DER HASSELT/Getty Images There are countless conflicting versions of what happened on a late November night in the village of Crépol, nestled between Lyon and Marseille in southwest France’s Auvergne-Rhône-Alpes region, where a 16-year-old white teenager named Thomas was stabbed to death at a local dance. The truth may never be known about what exactly led to the violent incident, which has left all of France in shock and...