Why protesters resort to violence during anti-CAA protests?

Two persons were killed and at least one person sustained injury in a clash over the Citizenship Amendment Act (CAA) in West Bengal's Murshidabad district on Wednesday, police said. Two groups, one opposing and the other supporting the controversial Citizenship Amendment Act (CAA), clashed in Sitamarhi in Bihar on Wednesday. At least 15 people have been injured in the brawl. While in a related incident in Maharashtra, trader tackled protesters on Bharat Bandh with red chilli.