FILE ?- In this November 2005 file photo, Larry Greene, public information director of the Southern Ohio Correctional Facility, demonstrates how a curtain is pulled between the death chamber and witness room at the prison in Lucasville, Ohio. The effectiveness of midazolam has been questioned following executions in Ohio, Arizona and, in April 27, 2017, Arkansas. Condemned inmate Kenneth Williams lurched and convulsed 20 times during a lethal injection execution that began with the controversial drug. (AP Photo/Kiichiro Sato, File) ORG XMIT: NY121
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