Clayton Lockett execution: Inmate dies of heart attack after vein fails during execution

MCALESTER, Okla. - An inmate whose execution was halted because the delivery of a new drug combination was botched died of a heart attack, according to the Oklahoma Department of Corrections.

Clayton Lockett died Tuesday after all three drugs were administered.

Director Robert Patton halted Lockett's execution about 20 minutes after the first drug was administered. He says there was a vein failure.

Lockett was writhing on the gurney and shaking uncontrollably.

The state penitentiary gave the following timeline:

6:23 p.m. - The injection process begins. Lockett has heavy, slow blinks, laid still
6:29 p.m. - Consistently closed his eyes
6:30 p.m. - First check of consciousness; still conscious
6:33 p.m. - Announced Lockett was officially unconscious
6:34 p.m. - Lockett started to move his mouth
6:36 p.m. - Lockett began convulsing and mumbling
6:37 p.m. - Lockett sat up and said "something's wrong."
6:39 p.m. - Prison officials lowered the blinds
7:06 p.m. - Lockett dies of heart attack

Lockett and Charles Warner were both scheduled to die after a state Supreme Court ruled that the men were not entitled to know the source of the lethal injection drugs.

Warner's execution has since been stayed for 14 days.

Jerry Massie, public information officer for the Oklahoma Department of Corrections, told reporters that the drug cocktail used in Lockett's and Warner's executions had never been tried before by the State of Oklahoma. As such, it was unclear how long the execution might take.

Massie said that over the last 19 lethal injections, the average time for the inmate to be pronounced dead is six to 12 minutes. He said the timing of the execution is counted once the drug cocktail is administered.

How the state of Oklahoma carries out an execution

Lockett received a new lethal injection formula that included the sedative midazolam as the first in a three-drug combination.

A four-time felon, Lockett, 38, was convicted of shooting 19-year-old Stephanie Neiman with a sawed-off shotgun and watching as two accomplices buried her alive in rural Kay County in 1999 after Neiman and a friend arrived at a home the men were robbing.

Warner had been scheduled to be put to death two hours later in the same room and on the same gurney. The 46-year-old was convicted of raping and killing his roommate's 11-month-old daughter in 1997. He has maintained his innocence.

Meanwhile, the two men placed their final meal orders. Dinner was served between noon and 1 p.m.

Warner asked for and received:

20 boneless hot wings from KFC
Large potato wedge
Two fruit cocktail cups
Cole slaw
20 ounce Coca Cola

Lockett asked for, but did not receive:

Chateaubriand steak, medium rare with A-1 steak sauce
Fried shrimp entree with cocktail sauce
Large baked potato with butter, sour cream, chopped scallions, bacon bits, salt and pepper
Six pieces of garlic butter toast
Whole Kentucky Bourbon pie
One liter of Coca Cola Classic
Bag of ice

Lockett's order was more than the $15 limit. He was offered a steak from Western Sizzlin, but he refused the offer.   

There are some still fighting against the men's executions. An Oklahoma anti-death penalty group is planning a protest and vigil.

The Oklahoma Coalition to Abolish the Death Penalty plans to host a sit-in at Gov. Mary Fallin's office followed by a vigil at the governor's mansion.

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