Apr 30, 2014 12:40 PM
OKLAHOMA CITY (AP) - Oklahoma officials are conducting an autopsy of a death row inmate who convulsed violently during his botched execution before he apparently died of a massive heart attack.
Medical examiner's spokeswoman Amy Elliott says the autopsy on 38-year-old Clayton Lockett was being performed Wednesday in Tulsa.
During his execution Tuesday evening that used a new sedative in a three-drug combination, Lockett gritted his teeth, tried to lift his head and convulsed violently after he had already been declared unconscious by a doctor. The state's prison director then halted the execution, and Lockett died later.
Elliott said the coroner will examine the body, including the sites where the drugs were administered, and conduct a toxicology report to determine the cause and manner of death.
(Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)
10 hours ago
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