MISSION - They watched their sons die from childhood cancer.

Now two Rio Grande Valley moms have a message for the community.

They hope an event this Saturday can bring awareness to childhood cancer and raise money to help others who go through the same pain.

Tanya Alvarez lost her son Brandon four months ago.

We first introduced you to Brandon Alvarez back in May, when he was sworn in as the Alton police captain.

Today his mom Tanya wears a shirt in his memory.

Sally Ibarra lost her son to cancer at age 16, three years.ago.

"When Abraham passed away, my biggest fear was that everyone would forget about him," says Ibarra.

Instead of letting that happen, she started an organization in his name. Aspire by Abraham.

And this Saturday at Bentsen Palm Community Park in Mission, hundreds will gather to race a 5k in Abraham’s honor, raising money to fund programs for kids and families like theirs.

Watch the video for the full story.