Stephens County District Attorney Jason Hicks says 16-year-old Michael Anthony Ray has been found competent to stand trial.
In late July, his attorneys filed an application for a mental competency exam for the defendant.
Ray is charged with first degree murder with deliberate intent for the murder of 14-year-old Alyssa Wiles in June.
It happened in the 2000 block of West Walnut in Duncan.
Police say Wiles' father found her body in a pool of blood when he returned home from work.
They say Ray then confessed to stabbing her to death.
He's being held without bond.
Copyright 2016 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.