ST. LOUIS — A former gymnastics coach admitted Wednesday, Sept. 2, 2026, in U.S. District Court in St. Louis that he engaged in unlawful sexual activity with two 13-year-olds he met through gymnastics programs.Marco A. Zomphier, 32, pleaded guilty to two counts of coercion and enticement of a minor. The U.S. Attorney’s Office said it will recommend a sentence of 25 years in prison.Zomphier admitted meeting the first victim in 2012, when she was a member of a YMCA dance and gymnastics...