Texas killer who stabbed real estate agent to be executed

Kosoul Chanthakoummane is to be executed Wednesday evening after 15 years on death row

Kosoul Chanthakoummane is due to be executed Wednesday night after 15 years on death row (Photos: AP/Death Penalty Information Center)

A death row inmate who stabbed a real estate agent more than 30 times using a home decor item is set to be executed by lethal injection.

Texas plans to execute Kosoul Chanthakoummane, 41, who was convicted of a 2006 murder at a model home in Collin County, at 6 p.m. Wednesday.

Chanthakoummane, who has been on death row for 15 years, will receive an injection of pentobarbital at the state execution center in Huntsville.

His attorneys did not say whether or not they would appeal to the U.S. Supreme Court to stop the execution.

The Walls Unit in Huntsville, Texas, where death row prisoners are executed

The Walls Unit in Huntsville, Texas, where death row prisoners are executed (Photo: Getty Images)

Chanthakoummane was on parole for aggravated kidnapping and robbery when prosecutors said he entered a model home in McKinney and killed estate agent Sarah Walker, 40.

Walker was found with dozens of injuries. Prosecutors said her attacker used a wooden plant stand found in the model home during the attack.

Walker’s attacker also stole her Rolex watch and a silver ring, which were never found.

Chanthakoummane admitted he was in the model house, but said he only came in to drink water. He maintains his innocence in Walker’s death.

Chanthakoummane was convicted largely on the basis of DNA evidence. Police found large amounts of his blood at the crime scene, including under Walker’s fingernails.

His lawyers rejected the DNA evidence and asked for a stay of execution until further investigation is completed.

The Texas Court of Appeals dismissed the stay.

“Any belief by Chanthakoummane that further DNA investigation would yield useful results in his case is a fantasy,” the Texas state attorney general’s office said.

However, Chanthakoummane’s trial was plagued with flawed evidence. A forensic dentist testified that a bite mark on Walker’s neck matched Chanthakoummane’s teeth. This evidence was entirely rejected by an appeals court in 2020.

Additionally, two witnesses who placed Chanthakoummane at the crime scene did so only after being put under hypnosis by Texas law enforcement.

If Chanthakoummane is executed, he will be the ninth person to be put to death in the United States this year.

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