Ruston police are asking Shreveport/Bossier area residents to help them locate a missing juvenile who might be in this area.  16-year-old Debra Ford-Owens -- also known as Natasha Ford -- bought a Greyhound Bus ticket for Shreveport this past  Sunday but it's not known if she actually boarded the bus.  She's described as a black female, five feet tall, and weighing about 180 pounds.  She's a severe diabetic and requires medication.  If you should see her or know where she might be you're asked to contact Investigator Griffith with the Ruston Police Department at 318-242-7733