A woman was arrested Saturday after authorities in Minnesota found a dead body in her car after an unrelated traffic accident. The Olmsted County Sheriff’s Office said deputies responded to the scene of a single-vehicle crash on eastbound Interstate 90 near the Highway 42 exit in Eyota at around 7 a.m. on Saturday. They arrived to find the driver, 32-year-old Margot Lewis, outside the vehicle being assisted by a passerby. While checking to see if anyone else was in the vehicle, deputies found the body of a woman in the backseat. The sheriff’s office said the condition of the body was “suspicio…