JONATHAN ALLEN A man fatally shot 10 people and injured at least 10 others at a ballroom dance venue during a Chinese Lunar New Year celebration late on Saturday near Los Angeles before fleeing the scene, police said. The shooter, who was still at large nearly 11 hours after the attack in the city of Monterey Park, was believed to be an Asian man between 30 and 50 years old based on descriptions from eyewitnesses, law enforcement officials said. "We need to get this person off the street as soon as possible," Los Angeles County Sheriff Robert Luna told reporters…