NEW YORK (CBSNewYork) — A 77-year-old grandmother was killed by a hit-and-run driver early Wednesday morning in Flushing, Queens.

Police said the woman, identified as Jun Sum Yim, was crossing Parsons Boulevard between 32nd and 33rd Avenues around 7 a.m. when she was struck. The vehicle fled the scene.

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Yim’s children told CBS2’s Lisa Rozner they are in complete shock.

Her daughter, Mimi, said a Good Samaritan found her lying unconscious in the road. By the time Yim was taken to Flushing Hospital, it was too late for Mimi to say goodbye.

“She was gone,” she said through tears.

The family said she was walking home from early morning church services, where she prayed seven days a week. She lived a few blocks from where she was killed.

“Why would anyone hit someone and leave someone to die like that? What are they going through that makes them so fearful?” Yim’s son, Jae, wondered.

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People who live in the area say there are a lot of accidents on Parsons Boulevard, but they’ve never seen a pedestrian killed. Wednesday afternoon, police handed out flyers about the dangers of speeding.

“Sixteen, 17 years I live here. I see so many, so many accidents on that corner,” said Victoria Struni. “It’s too much, too much.”

“She was always saying, ‘hi, how are you?’ I’m very upset about this,” building superintendent Edward Madej said.

“It’s devastating, and I hope they catch that guy,” said neighbor Marilyn Land.

The mother of four and grandmother of two became a widow about a year ago, Rozner reported. Her children say she found peace in prayer, and now they’re praying the driver comes forward.

“If there were any witnesses at that moment, please if you can just come forward and help relieve our pain… please,” Mimi said.

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Police have not released a description of the vehicle.