An Army National Guard officer pleaded guilty in federal court today to sexually abusing four minors over several years while he was director of the youth ministry at Fort Leonard Wood U.S. Army Base. 42-year old David J. McKay of Waynesville was arrested and charged after sexually abusing 4 children between the ages of 11 and 17 dozens of times over a period of 7 years. The sexual abuse occurred at Fort Leonard Wood and various other locations within Pulaski County. The victims also reported being abused during the youth group’s ski trips to Colorado and on camping trips at Fort Leonard Wood. McKay pleaded guilty in Federal Court to one count of transporting a minor to engage in criminal sexual activity and four counts of sexually abusing a minor, and is subject to serve 10 years to life in federal prison without parole. His sentencing hearing will take place at a later date.