Susan Sarandon & Dr. Phil Fight to Save Richard Glossip From Death Row

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Susan Sarandon has been helping death row inmates ever since her Oscar-winning role in 1995's Dead Man Walking, and now she's getting a helping hand from Dr. Phil McGraw.

Sarandon's latest fight is on behalf of Richard Glossip, 52, who is scheduled to die by lethal injection on Sept. 16.

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According to The Washington Post, Glossip was sentenced to the death penalty in 1998 after he was accused of masterminding the killing of his boss, a 54-year-old man named Barry Van Treese. Treese was beaten to death with a baseball bat in an Oklahoma motel on Jan. 7, 1997. While a man named Justin Sneed confessed to the murder, he told investigators that Glossip paid him to do it. A plea deal helped Sneed escape the death penalty.

Sarandon keeps in contact with Sister Helen Prejean, the real-life nun she played in Dead Man Walking, and she was the one who convinced Sarandon of Glossip's innocence.

"The man, Justin Sneed, who confessed to doing the murder is serving a life sentence and solely on his word, without forensic evidence, Richard Glossip is facing death," Prejean told ET.

"We're not asking for him to be set free," Sarandon told ET. "We're asking just for the time to be taken to really present this evidence, and hopefully people will sign a petition on or call [Oklahoma Governor Mary Fallin]."

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On Monday, Dr. Phil will air his interview with Sarandon and Prejean, and the TV host who told ET "the clock is ticking."

"His life hangs in the balance," Dr. Phil said. "He is on death row. He is scheduled to be executed in just a matter of days and we're dedicated to stopping that from happening."

In a clip from the episode, Glossip insists on his innocence.

"I want people to know that I didn't kill this man," Glossip says. "I didn't participate; I didn't plan or have anything to do with this crime."

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Sarandon already has more than 150,000 signatures in support of granting Glossip a stay of execution.

"I'm heartbroken for the state of our judicial system as much as I'm heartbroken for this man," Sarandon told Dr. Phil.

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