More than half its people are Han Chinese, but the area is home to more than 40 different ethnic groupings, including Tibetans, Hui and Mongols.

CNN: Chinese rescuers impeded by earthquake damage

People who answered the door at Mr. Han's Elmhurst home Monday night declined to comment.

WSJ: Man Dies After Push Onto Track

Central Asia has been a geostrategic crossroads of people, capital and ideas since the first Han dynasty caravans traveled the ancient Silk Road.

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But maybe people were afraid that Naeem Davis, who pushed Han onto the tracks, would push them too.

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