First-Degree Murder Charge Against Tulsa Man Dismissed

A judge dismissed a first-degree murder charge against a 28-year-old Tulsa man in the 2014 stabbing death of his mother.

Prosecutors requested the dismissal of the charge against Arthur Lee DeVaughn, saying "he has been unable to achieve competency with a reasonable period of time as required by Oklahoma law."

DeVaughn was charged in February 2014 in the death of 51-year-old Glenda Castaneda. According to court records, a judge ruled him incompetent after a mental health exam in 2014.

2/9/2016 Related Story: Tulsa Man Arrested For Stabbing His Mother To Death

Prosecutors said in their filing that after two years of treatment by the Oklahoma Department of Mental Health, DeVaughn remains incompetent to stand trial.

The judge dismissed the murder charge on Friday, October 28, 2016, then ordered DeVaughn held for continued treatment at a state Mental Health facility.