A COLD-BLOODED killer who murdered three girls and a woman by strangling them uttered the bizarre words "Oooh-ee! I can feel that" as he was put to death.
Anthony Allen Shore, 55, said the lethal injection "burned" as he appeared to take pleasure in his death in Texas, the first US execution this year.
The murderer became known as the "Tourniquet Killer" for using a homemade tourniquet to torture and strangle his victims between 1986 and 1995.
As the lethal dose of pentobarbital began, Shore said the drug burned and added "Oooh-ee! I can feel that," before falling unconscious.
He was pronounced dead 13 minutes later, at 6.28pm on January 18.
Shore attacked his first victim, 14-year-old Laurie Tremblay, as she walked the school.
In 1992 he murdered Maria del Carmen Estrada, a Mexican immigrant who had been working as nanny.
Her half-naked body was found in the drive-thru of a Houston Dairy Queen.
Over the next two years Shore sexually assaulted and killed nine-year-old Diana Rebollar and 16-year-old Dana Sanchez.
All of his victims were Hispanic and at least three of the four were raped.
The serial killer's crimes went undetected for a decade until he was brought in for questioning after sexually molesting two relatives.
His DNA was tested against cold case files and he was arrested for killing Maria del Carmen Estrada in 2003 before admitting to murdering three others.
According to New York Daily News, Shore's voice was overcome with emotion as he said he would die with a "clear conscience".
"I'd like to take a moment to say I'm sorry," he said in his final statement.
"No amount of words could ever undo what I've done."
He added: "To the family of my victims, I wish I could undo that past.
"It is what it is. God bless all of you, I will die with a clear conscience.
"I made my peace."
Shore, who died 13 minutes after falling unconscious, was convicted in 2004 and sentenced to death.
His execution was the 546th in Texas since the US Supreme Court reinstated the death penalty in 1976, the most of any state.
Andy Kahan, the city of Houston crime victims’ advocate, said:“Anthony Allen Shore’s reign of terror is officially over.
“There’s a reason we have the death penalty in the state of Texas and Anthony Shore is on the top of the list.
"This has been a long, arduous journey that has taken over 20 years for victims’ families.”