SPRING, Texas Customers are used to long lines at Chick-fil-A restaurants, but rarely are the reasons for waiting as personal as they were on Tuesday.

Stores across Houston went from simply serving up fast food to supporting a somber cause. 20 percent of sales from select stores will be donated to Cassidy Stay.

'It just makes you feel a little proud that you could sort of be a part of it,' customer Sean Williford said.

Since the 15-year-old from Spring lost her parents and four brothers and sisters to violence last week, tens of thousands of dollars have been raised for her.

'It's been remarkable. I just can't believe that word-of-mouth can generate this much support and love for this girl,' said Nancy Nichols with Chick-fil-A.

Many of Tuesday's customers were there because of the fundraiser.

'I don't generally support this place, but I am today because of it,' said customer Mary Tegtmeier.

'It gives me an opportunity to let her [Cassidy] know that there's good in the community,' said customer Randy Smith, 'not just the events that have happened recently to her.'

They know money can never replace what was lost, but they know it can show people care. They also hope it can perhaps help one day ease a young girl's pain.

The fundraiser lasts until 8 p.m. Tuesday.

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