DENISON, Iowa (AP) – Authorities have identified the body found near railroad tracks in western Iowa last month as a Pennsylvania man.  But investigators are still waiting on more test results to help determine the cause of 44-year-old Jonathan Elwell’s death. Crawford County Sheriff Jim Steinkuehler says the Shillington, Penn., man’s body was found by two railroad workers near Highway 30 between Vail and Westside on June 19th. Elwell’s rented vehicle had been found in Crawford County on April 20th with his bicycle in the trunk.  Officials say foul play is not suspected in Elwell’s death, but family members have said they don’t know why he was in Iowa.