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 This material may not be published, broadcast, rewritten or redistributed.)
3 hours ago
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