Thousands united to bring light to the dark world of cancer at the 12th annual Light the Night Walk this evening. More than 5,000 people gathered at Lake Park at Mueller for the event benefiting the leukemia and lymphoma society. Participants carry illuminated lanterns--white for survivors, red for supporters and gold in memory of those lost. Funds raised by teams and walkers go to blood cancer research, and educational programs for patients and families. Fox 7 is a proud sponsor of the event, and Fox 7's Christine Haas and Mike Warren were this year's emcees.