A 37-year-old Indianapolis man died Sunday afternoon after swimming at a state recreation area in west-central Indiana. Witnesses say Rafael A. Lopez was in the water at the Lieber State Recreation Area’s Cataract Lake when he began behaving erratically, bobbing up and down in the water near a roped-off area of the beach. Bystanders brought Lopez to shore and began performing CPR on him until medical personnel arrived. He was taken to a Greencastle hospital, where he was pronounced dead. An autopsy was scheduled for Monday.