AUSTIN, Texas (Reuters) - Texas executed a man on Wednesday who fatally shot his ex-wife and four others in 1997 with a hunting rifle in a killing spree launched when he found her having sex with another man.
Coy Wesbrook, 58, was pronounced dead at 8:04 p.m. after receiving a lethal injection at the state's death chamber in Huntsville. His execution had been delayed by about two hours because of a last-minute appeal.
The execution was the 535th in Texas since the U.S. Supreme Court reinstated the death penalty in 1976, the most of any state.
Wesbrook told a court he went to the Houston-area home of his former wife, Gloria Coons, seeking to reconcile. When he arrived, he found other people in the residence and began drinking with them, court documents showed.
Two men slipped into his wife's bedroom and when he went in, he found her having sex with one of them. He then went to his truck to fetch his gun.
He went back and fatally shot anyone still on the premises, killing his ex-wife, Antonio Cruz, Ruth Money, Anthony Rogers and Kelly Hazlip.
He then walked to his truck and waited.
Wesbrook, a former security guard, could be overheard saying: "I did it. I did it. I did what I had to do," neighbors testified.
One man he shot to death was in the yard and the other victims were found inside. All had been shot at close range and his ex-wife was shot last, court documents showed.
It took a jury about 90 minutes to sentence him to death.
Lawyers for Wesbrook tried to have the execution halted, arguing his rights had been denied and he was mentally impaired.
"I am sorry that I cannot bring everybody back. I wish it could be different," Wesbrook was quoted as saying in his final statement by the Texas Department of Criminal Justice.
"I have no bad sentiment towards anyone. I can understand your outrage and why you are mad at me. God be with all of us," he was quoted as saying.
RELATED: Other notable executions and criminals currently on death row:
Notable death penalty executions and people on death row
Texas executes man who killed ex-wife, 4 other people
Willie Francis, the first known incident of failed execution by lethal injection, was executed on May 9, 1947. He was sentenced to death for the murder of his former boss, Andrew Thomas.
John Wayne Gacy, a rapist and serial killer responsible for the sexual assaults and murders of at least 33 men, was executed in Illinois on May 10, 1994.
Ted Bundy, a kidnapper, rapist, and serial killer responsible for the assaults and murders of dozens of young women, was executed in in Florida on January 24, 1989. His actual victim count remains unknown.
Aileen Wuornos, a serial killer responsible for the deaths of seven men, was executed in Florida on October 9, 2002.
(AP Photo/Peter Cosgrove)
Charles Starkweather, a spree killer responsible for eleven murders, was executed in Nebraska on June 25, 1959.
(AP Photo/Don Ultang)
Timothy McVeigh, responsble for the Oklahoma City bombing, was executed in Indiana on June 11, 2001.
Thomas Provenzano, a convicted murderer responsible for shooting three people, was executed in Florida on June 21, 2000.
(AP Photo/Peter Cosgrove)
Gary Gilmore, responsible for the shooting deaths of two men, was executed in Utah on January 17, 1977.
Stanley "Tookie" Williams, founder and leader of the Crips gang responsible for several murders and other crimes, was executed in California on December 13, 2005.
(Photo by Justin Sullivan/Getty Images)
Teresa Lewis, convicted of murdering her husband and stepson, was executed in Virginia on September 23, 2010.
(AP Photo/Va Dept of Corrections)
William Bonin, a serial killer responsible for a minimum of 21 rapes and murders, was executed in California on February 23, 1996.
Dzhokhar Tsarnaev, responsible for Boston Marathon bombing, was sentenced to death on May 15, 2015.
(AP Photo/Federal Bureau of Investigation, File)
Nidal Malik Hasan, responsible for Ford Hood shooting, was sentenced to death on August 28, 2013.
(AP Photo/Bell County Sheriff's Department, File)
Joseph E. Duncan III, a convicted murderer and sex offender, was sentenced to death on August 27, 2008.
(AP Photo/Kootenai County First Appearance Video Court)
Death row prisoner Coy Wayne Wesbrook is photographed Wednesday, Feb. 3, 2016, at the Texas Department of Criminal Justice Polunsky Unit outside Livingston, Texas. Wesbrook, 58, is set for lethal injection March 9, 2016, for the November 1997 fatal shootings of his ex-wife and another man at her apartment in Channelview, just east of Houston. They were among five people killed during the shooting rampage. (AP Photo/Michael Graczyk)