Attorneys for death row prisoner Richard Glossip have made a last-minute bid to save his life, saying the state of Oklahoma may be about to execute an innocent man. Glossip is scheduled to die at 3 p.m. Central time today. On Tuesday, Oklahoma Governor Mary Fallin denied him a stay of execution despite mounting calls from supporters to spare his life. In 1997, Glossip was working as a manager at the Best Budget Inn in Oklahoma City when his boss, Barry Van Treese, was murdered. A maintenance worker, Justin Sneed, admitted he beat Van Treese to death with a baseball bat, but claimed Glossip offered him money and job opportunities for the killing. The case rested almost solely on Sneed’s claims. No physical evidence ever tied Glossip to the crime. Glossip’s attorneys say Sneed implicated their client in exchange for a deal to save himself from the death penalty. On Tuesday, Glossip’s attorneys asked the Oklahoma Court of Criminal Appeals to halt Glossip’s execution, saying new evidence further supports his innocence. We’ll have more on the case with leading anti-death-penalty activist Sister Helen Prejean after headlines.