The experience made him an advocate for cancer research.
"I remember being in her hospital room, trying to keep a straight face and not cry in front of her. It was a very heartbreaking setting. I gave my sister a hug and it was very overwhelming." Bradley told ABC News.
Bradley and earned a scholarship after raising $57,000 for cancer research. But instead of keeping the $2,500 prize for himself, he gave it to Sergio Garcia, a senior at nearby Anderson High School, who beat leukemia.
"It was something really nice that he did for me and I didn't even know him," Garcia said in an interview with ABC News.
"We've became really good friends after that. [I plan] to pay some of my tuition for college."
Garcia, now cancer-free, says he's grateful for friends like Bradley.
He plans on attending Austin Community College before transferring to a larger school.
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