An Oklahoma scientist who went missing on Tuesday has been found safe, a friend told The Oklahoman on Sunday. Leslie Driskill, a 34-year-old mom, is a long-distance runner who manages clinical trials at the University of Oklahoma Health Sciences Center. She was last seen leaving work on Monday night and her vehicle was later found in Will Rogers Park in Oklahoma City. Driskill was found on the scheduled date of the Memorial Marathon, a race in which she has dressed up as a unicorn to encourage stragglers across the finish line in years past.