For almost 30 years, John Chhan and his wife, Stella, have been serving customers their fresh donuts. But for the past month, Stella's been absent.

The Chhans came to the U.S. as refugees from Cambodia in 1979. They opened a donut shop called Donut City in Seal Beach, and the duo has been doling out delicious daily donuts ever since.

But last month, Stella stopped showing up behind the counter. She'd suffered a brain aneurysm, and though she survived, she was very weak and slowly recovering in a rehab facility. That meant that John Chhan had run the shop alone and be away from his sick wife. When customers learned of the situation, they wanted to do something to help.