<p>An unusually lengthy deliberation by the US Supreme Court delayed the process by more than four hours but the prison said Davis was pronounced dead after a lethal injection at 11:08 pm local time (0308 GMT Thursday).<br /><br />Davis had escaped three previous dates with death in a racially-charged case in America's Deep South that has dragged on for more than two decades and made him a poster child for the worldwide campaign to ban the death penalty.<br /><br />The family of policeman Mark MacPhail's family meanwhile continued to insist Davis was guilty. Several of them were in the Jackson state prison to witness him die.<br /><br />The last-ditch bid to stay Davis's execution had earlier been rejected twice at state level and the five-member Georgia Board of Pardons and Paroles on Tuesday turned down his bid for clemency.</p>
<p>An unusually lengthy deliberation by the US Supreme Court delayed the process by more than four hours but the prison said Davis was pronounced dead after a lethal injection at 11:08 pm local time (0308 GMT Thursday).<br /><br />Davis had escaped three previous dates with death in a racially-charged case in America's Deep South that has dragged on for more than two decades and made him a poster child for the worldwide campaign to ban the death penalty.<br /><br />The family of policeman Mark MacPhail's family meanwhile continued to insist Davis was guilty. Several of them were in the Jackson state prison to witness him die.<br /><br />The last-ditch bid to stay Davis's execution had earlier been rejected twice at state level and the five-member Georgia Board of Pardons and Paroles on Tuesday turned down his bid for clemency.</p>