A death investigation is underway after the body of a missing 23-year-old woman from Mount Prospect was found in a forest preserve in suburban Cook County. The death investigation began around 9:30 a.m. Nov. 9, after a motorist reported a person lying in Busse Woods near Higgins Road, Elk Grove Village Police said. When emergency responders arrived, they located a deceased female at the location and began a death investigation, police added.