SAN ANTONIO -- More than 120,000 people are in desperate need of a life-saving organ transplant, according to the American Transplant Foundation.

KENS 5 spoke with a local teacher who is cancer-free thanks to a stranger who took the time to register for a blood and bone marrow match.

That teacher, David James Trujillo Junior, received a bone marrow transplant as a child. The transplant helped him overcome his acute lymphocytic leukemia.

Trujillo keeps in touch with the man who took the time to register as a donor. 

Wednesday, the Children's Hospital of San Antonio planted pinwheels as a symbol to celebrate the gift of life.

Trujillo's survival inspired him to become a teacher.

The Hospital is home to a blood and marrow transplant center that provides treatment for children diagnosed with cancer or blood disorders.

April is Donate Life Month. More than 11,000 Texans are still waiting for a life-saving organ transplant.

Those on the list desperately need a match.

It takes simply a simple cheek swab to possibly be the hero they're waiting for.

Click here to register.