By Tim Reid and Jonathan Allen MONTEREY PARK, Calif. (Reuters) -A gunman killed 10 people at a ballroom dance hall during a Chinese Lunar New Year celebration late on Saturday near Los Angeles before fleeing the scene and later killing himself when approached by police on Sunday, authorities said. Los Angeles County Sheriff Robert Luna said during a Sunday afternoon press conference the motive for the shooting was not known. He identified the suspect as Huu Can Tran, 72, who wielded a pistol with a high-capacity magazine. “We want to know, we want to know how something this awful can happen,” …

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