A death-row inmate is maintaining his innocence on the eve of his execution in Oklahoma, saying he hasn't given up hope that his lethal injection will be halted.

Richard Glossip spoke to The Associated Press during a brief telephone interview Tuesday form the Oklahoma State Penitentiary. Glossip says he will "hope for the best."

Glossip is scheduled to be executed Wednesday. He was convicted of ordering the beating death of a motel owner in 1997. Glossip says he was framed by the killer, who is serving a life sentence.

Glossip's case has drawn attention from death penalty opponents, and his family and supporters rallied Tuesday at the Oklahoma Capitol. They want Republican Gov. Mary Fallin to issue a 60-day stay. The governor has repeatedly said she wouldn't grant the request.