Oklahoma attorney general files motion to vacate Richard Glossip’s conviction

Glossip, who is scheduled to be executed 18 May, was convicted of the 1997 murder-for-hire killing of his boss

The conviction and death sentence for the Oklahoma death row inmate Richard Glossip should be thrown out and a new trial ordered, the state's new attorney general said on Thursday, as support has grown even among death penalty supporters who say Glossip is innocent.

In a filing with the Oklahoma court of criminal appeals, the attorney general, Gentner Drummond, said that although the state is not suggesting Glossip is innocent, the key witness against Glossip lied to the jury about his psychiatric treatment and reasons for taking the mood-stabilizing drug lithium.