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Sprinter explores ways to mentor youth after daughter' death

Classmates of Trinity Gay gather for a candlelight vigil at Lafayette High School, Monday, Oct. 17, 2016, in Lexington, Ky. Thousands of people joined Olympic sprinter Tyson Gay at the vigil on the high school's track honoring Gay's daughter, who was fatally shot over the weekend. (AP Photo/Timothy D. Easley)

U.S. sprinter Tyson Gay

After a lackluster performance at the 2008 Beijing Olympics, American sprinter Tyson Gay will be looking for redemption on the track at the London Games. -- By Armando Botello II