Texas murder accused executed

A Texas man convicted of killing a police informant has been executed after the US Supreme Court rejected arguments that he was too mentally impaired to qualify for the death penalty.

Marvin Wilson, 54, was pronounced dead 14 minutes after his lethal injection began at the state prison in Huntsville. Wilson’s lawyers argued that he should have been ineligible for capital punishment because of his low IQ.

In their appeal to the court, his lawyers pointed to a psychological test conducted in 2004 that pegged Wilson’s IQ at 61, below the generally accepted minimum competency standard of 70.

But lower courts agreed with state lawyers who argued that Wilson’s claim was based on a single test that may have been faulty and that his mental impairment claim was not supported by other tests and assessments of him over the years.

The Supreme Court denied his request for a stay of execution less than two hours before his lethal injection began.

Lead defence lawyer Lee Kovarsky said he was “gravely disappointed and saddened” by the ruling, calling it “outrageous that the state of Texas continues to utilise unscientific guidelines … to determine which citizens with intellectual disability are exempt from execution”.

Wilson was convicted of murdering 21-year-old Jerry Williams in November 1992, several days after police seized 24g of cocaine from Wilson’s apartment and arrested him.

Witnesses testified that Wilson and another man, Andrew Lewis, beat Mr Williams outside a convenience store in Beaumont, about 80 miles east of Houston. Wilson, who was free on bond, accused Williams of snitching on him about the drugs, they said.

Witnesses said Wilson and Lewis then abducted Mr Williams, and neighbourhood residents said they heard a gunshot a short time later. Mr Williams was found dead on the side of a road the next day, wearing only socks, severely beaten and shot in the head and neck at close range.

Wilson was arrested the next day when he reported to his parole officer on a robbery conviction for which he served less than four years of a 20-year prison sentence. It was the second time he had been sent to prison for robbery.

At Wilson’s capital murder trial, Lewis’s wife testified that Wilson confessed to the killing in front of her, her husband and his own wife.

“Don’t be mad at Andrew because Andrew did not do it,” Lewis’s wife said Wilson told them. “I did it.”

Lewis received a life prison term for his involvement.

The Supreme Court issued a ruling in 2002 outlawing the execution of the mentally impaired, but left it to states to determine what constitutes mental impairment. Mr Kovarsky said Texas is trying to skirt the ban by altering the generally accepted definitions of mental impairment to the point where gaining relief for an inmate is “virtually unobtainable”.

State lawyers said the court left it to states to develop appropriate standards for enforcing the ban and that Texas chose to incorporate a number of factors besides an inmate’s IQ, including the inmate’s adaptive behaviour and functioning.

Edward Marshall, a Texas assistant attorney general, said records show Wilson habitually gave less than full effort and “was manipulative and deceitful when it suited his interest”. Mr Marshall said the state considered Wilson’s ability to show personal independence and social responsibility in making its determinations.

“Considering Wilson’s drug-dealing, street-gambler, criminal lifestyle since an early age, he was obviously competent at managing money, and not having a 9-to-5 job is no critical failure,” Mr Marshall said.

“Wilson created schemes using a decoy to screen his thefts, hustled for jobs in the community, and orchestrated the execution of the snitch, demonstrating inventiveness, drive and leadership.”

Wilson’s lawyers also argued that additional DNA tests should be conducted on a white person’s hair found on Mr Williams’s body, suggesting someone else killed him. Wilson and Mr Williams were black, as is Lewis.

Ed Shettle, the Jefferson County assistant district attorney who prosecuted Wilson, dismissed the theory of another killer as a “red herring”.

Wilson was the seventh person executed by lethal injection in Texas this year. At least nine other prisoners in America’s most active death penalty state have execution dates in the coming months, including one later this month.

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