Oklahoma County DA David Prater dismisses claims of new evidence by convicted murderer Richard Glossip's legal team

Anti-death penalty activist and author Sister Helen Prejean, left, speaks Monday to Erika Glossip-Hodge, daughter of Richard Glossip, at the state Capitol. He is set to die Wednesday. [Photo by Graham Lee Brewer, The Oklahoman]

The Oklahoma County district attorney dismissed the claims of a death row inmate's legal team Monday that there is new evidence, calling the announcement a play for media attention.

"This is a bull---- public relations campaign," District Attorney David Prater told reporters in a packed hallway at the state Capitol.

Prater's comments came just after a news conference held outside the doors of the Oklahoma Supreme Court by a group of attorneys and supporters of convicted murderer Richard Glossip.

His execution is scheduled for Wednesday.