Clayton Lockett failed execution: Barack Obama calls for death penalty review

President Barack Obama has announced he will ask Attorney General Eric Holder to investigate problems surrounding the application of the death penalty in the US.

His announcement comes just days after a botched execution in Oklahoma drew widespread attention.

Barack Obama called inmate Clayton Lockett’s prolonged death earlier this week from an improperly delivered lethal injection “deeply troubling”.

The president said he has conflicting feelings regarding the death penalty.

“This situation in Oklahoma I think just highlights some of the significant problems,” Barack Obama told reporters.

The problems surrounding Clayton Lockett’s execution come amid a wider debate over the legality of the three-drug method (photo Fox News)

Americans should “ask ourselves some difficult and profound questions around these issues”, he added.

Barack Obama, trained as a lawyer, said the death penalty is warranted in some cases – including child and mass murder – but its application in the US is problematic.

At issue are evidence of racial bias and potential exoneration of some inmates, he said.

Barack Obama said he will task Eric Holder with providing “an analysis of what steps have been taken, not just in this particular instance, but more broadly in this area”.

Meanwhile, Oklahoma Governor Mary Fallin has ordered an “independent review” of the state’s execution protocols, saying the state’s department of public safety would lead the inquiry.

Prison officials in Oklahoma inserted lethal drugs into Clayton Lockett’s groin after failing to find a vein elsewhere.

They took 51 minutes to find a suitable vein and did not realize the one they chose in his groin had collapsed.

The inmate succumbed to a heart attack 10 minutes after his execution was stopped, as he writhed and mumbled.

Clayton Lockett had been sentenced to death for shooting 19-year-old Stephanie Neiman and watching as two accomplices buried her alive in 1999.

Stephanie Neiman and a friend had interrupted the men as they robbed a home.

The problems surrounding Clayton Lockett’s execution come amid a wider debate over the legality of the three-drug method and whether its use violates guarantees in the US constitution “against cruel and unusual punishment”.

The US has encountered increasing problems in obtaining the drugs for lethal injections, amid an embargo by European pharmaceutical companies.

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