CHICAGO (WLS) --More than 3,000 people were at Soldier Field for an event to honor a 5-year-old boy who lost his battle with cancer.
The 12th annual "Move for the Kids 5k Walk-Run" raises money for patients of Lurie Children's Hospital.
Participants started at Soldier Field, moved through Grant Park, then back to Soldier Field.
There was a special tribute to former patient Lucas "Bear" Cervone. He died two weeks ago Sunday. His parents helped distribute tattoos of lucas' signature.
"In the cards that we've gotten, we've seen how much of the world, and not just America, the entire world knows about Lucas. And that's amazing," his dad said.
Organizers said Sunday's event raised $425,000 for patients of Lurie Children's Hospital.
Lucas, who battled cancer for most his life, was diagnosed with leukemia at age 2.
Lucas was flooded with birthday cards last month after news spread that cards and letters would help him during a difficult time. The Chicago UPS Store where the cards were delivered was running out of space because so many letters were sent.