Oklahoma Prisoner Executed

By: Associated Press
By: Associated Press

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A man convicted of two killings and
suspected in at least two more has been executed in Oklahoma.

Robert Knighton was pronounced dead of drug injection last
evening at the state prison in McAlester.

He served time for manslaughter in Missouri, and began his crime
spree after escaping from a Kansas City halfway house.

Knighton killed Richard and Virginia Denney near Tonkawa,
Oklahoma, in 1990. He'd been charged with the earlier killing of
two men in Clinton, Missouri, but wasn't convicted because of his
death sentence in Oklahoma.

The daughters of his Oklahoma victims are from Kansas.

Sue Norton of Arkansas City had visited the
62-year-old prisoner and petitioned for clemency.

But her sister, Maudie Nichols of Oxford, said it was
right for Knighton to pay with his life.

Norton is an adopted daughter and Nichols the natural daughter.

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