A planned fight among young people escalated into a mass shooting at a North Carolina park on Monday morning that left two people dead, authorities said.The shooting happened at around 10am local time at Leinbach Park, which is near Jefferson Middle School, Winston-Salem police said in a social media post.Several people were shot, including two fatally, the North Carolina State Bureau of Investigation said in a statement.Winston-Salem police Assistant Chief Jason Swaim said two juveniles had...