MOUNT VERNON, Iowa (AP) — Authorities have identified a man believed to have drowned while swimming at Palisades-Kepler State Park near Mount Vernon in eastern Iowa. The Linn County Sheriff’s Office identified him as 31-year-old Jairo Mejia Jimenez, of Cedar Rapids. A search began Saturday night after it was reported that a man swimming near the dam went under and didn’t resurface. The search continued Sunday along the Cedar River.