Despite the work of his supporters, celebrity advocates and a recent delay in his execution, The Oklahoma Court of Criminal Appeals has denied death row inmate Richard Glossip’s appeal. 

Glossip is set to be executed at 3 p.m. Wednesday at the Oklahoma State Penitentiary (OSP) in McAlester, Oklahoma for the 1997 murder of motel owner Barry Van Treese. Glossip was convicted of orchestrating the murder but was not accused of doing the actual killing. 

Glossip’s case has drawn international attention, largely from opponents of the death penalty. Actress Susan Sarandon has taken up Glossip’s cause, appearing on the Dr. Phil show to make her case as to why she believes Glossip shouldn’t be executed. Sister Helen Prejean, a well-known opponent of the death penalty, also has advocated for Glossip. She met with Glossip prior to his original scheduled execution and also celebrated the reprieve with Glossip’s attorneys outside the OSP facility following news of the stay.

Celebrity and national media attention aside, Gov. Mary Fallin said she had no plans on halting Glossip’s execution and made no effort to issue a 60-day stay under her own authority, saying she believes he’s guilty of murder.

The court delayed Glossip’s execution Sept. 16 when it agreed to review new evidence his attorneys said cast doubt on his guilt. His attorneys cited new witnesses who said Justin Sneed, the admitted killer of Van Treese, bragged about setting Glossip up. 

Part of the new evidence, according to the attorneys, was information from a drug dealer who said he sold methamphetamine to Sneed. The attorneys contended this was valuable information a jury should have had before convicting Glossip. Defense attorney Kathleen Lord said there were also indications evidence in the case was destroyed, including a box with white papers in it, duct tape and a shower curtain.

State attorney’s argued the new witnesses are inherently untrustworthy because of their criminal past.

Court filings indicate Glossip’s request for a new hearing were denied Monday by the Oklahoma State Courts. 

Following the denial and urging for further review of the murder case, Glossip attorney Mark Henricksen said he expects to file a petition with the nation’s highest court, as reported by news affiliate KOCO.

No further details regarding the planned petition to halt the execution have been released.

The McAlester (Oklahoma) News-Capital contributed details to this story.