OKLAHOMA CITY (AP) -- A man accused in the stabbing death of his father, Oklahoma's labor commissioner, is set to appear in court.
Oklahoma County Special Judge Lisa Hammond is scheduled to convene the hearing Thursday for 26-year-old Christian Costello, who is charged with first-degree murder in the killing of 59-year-old Mark Costello.
Prosecutors say Christian Costello attacked his father with a knife and repeatedly stabbed him on Aug. 23 at a northwest Oklahoma City restaurant. A judge has entered a not guilty plea on Christian Costello's behalf.
RELATED: Oklahoma Labor Commissioner Mark Costello stabbed to death at OKC restaurant | Court records reveal Christian Costello's criminal past | Former classmates, colleagues share memories of slain Oklahoma Labor Commissioner Mark Costello | Bond denied for defendant in Mark Costello's killing
The Costello family has said Christian Costello suffers from mental illness and court records show he's been in a mental health facility, but defense attorneys say they've not decided whether to seek a psychological examination of him.
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