FAYETTEVILLE, Ga. &

Pro wrestler Chris Benoit canceled a pay-per-view appearance at the "Vengeance" event in Houston because of "personal reasons" a day before he, his wife and their 7-year-old son were found dead in an apparent murder-suicide.

Details of the deaths "are going to prove a little bizarre" when released to the public, Fayette County District Attorney Scott Ballard told the Atlanta Journal-Constitution. Autopsies were scheduled today by the Georgia Bureau of Investigation.

Authorities were investigating the deaths at a secluded Fayette County home as a murder-suicide and were not seeking any suspects.

Investigators believe Benoit (pronounced ben-WAH) killed his wife, 43-year-old Nancy, and son Daniel during the weekend and then himself Monday. The bodies were found Monday afternoon in three separate rooms of the house, off a gravel road about two miles from the Whitewater Country Club.

Ballard told The Associated Press a gun was not used in any of the deaths, but he would not say how the three died.

"We're pretty sure we know, but we want to confirm it with the crime lab," Ballard said early today.

Fayette County Coroner C.J. Mowell did not return calls seeking comment. The answering service for his funeral home said he was out of town.

Authorities also declined to say whether drugs or steroids were found inside the house. "We're not releasing any information as far as what was located inside the house," sheriff's Sgt. Keith Whiteside said today.

Asked about the condition of the interior of the house, Whiteside said investigators found "nothing really out of the ordinary." He said Benoit was found in the home's weight room, his wife in an office and the son in an upstairs bedroom.

Whiteside said toxicology tests could take up to a week or longer to complete.

Neighbors said the Benoits led a low-key lifestyle.

"They were nice," said Lorre Jones, who lives across the street. Her daughter Alaina said: "We would see Chris walking in his yard from time to time."

He wasn't rude, but he wasn't really outwardly warm."

Jimmy Baswell, who was Benoit's driver for more than five years, placed a white wreath at the Benoits' gate today.

"I saw him with his family all the time," said Baswell. "They always seemed like they were the happiest people."

World Wrestling Entertainment said on its Web site that it asked authorities to check on Benoit and his family after being alerted by friends who received "several curious text messages sent by Benoit early Sunday morning."

The WWE, based in Stamford, Conn., said it had been asked by authorities not to release further information on the deaths.

Benoit, born in Montreal, was a former world heavyweight champion, Intercontinental champion and held several tag-team titles. His names in the ring included "The Canadian Crippler."

"WWE extends its sincerest thoughts and prayers to the Benoit family's relatives and loved ones in this time of tragedy," the company said in a statement on its Web site.

Benoit had maintained a home in metro Atlanta from the time he wrestled for the defunct World Championship Wrestling. The Fayette County Tax Assessors Office lists the value of the house, situated on more than 8.5 acres, at nearly $900,000.

The WWE canceled its live "Monday Night RAW" card in Corpus Christi, Texas, and USA Network aired a three-hour tribute to Benoit in place of the scheduled wrestling telecast.

Benoit's wife managed several wrestlers and went by the stage name "Woman," The Atlanta Journal-Constitution reported. They met when her then-husband drew up a script that had them involved in a relationship as part of a story line on World Championship Wrestling, the newspaper said.

Benoit has two other children from a prior relationship.

Benoit became a standout at an early age among wrestling prospects who trained in the dungeon basement of the house where fellow Canadians and professional wrestlers Owen and Bret Hart trained. Owen Hart was killed during a wrestling event in 1999.

"He was like a family member to me, and everyone in my family is taking it real hard," said Bret Hart, a five-time champion with the now-defunct World Wrestling Federation.

Associated Press writers Greg Bluestein and Jason Bronis contributed to this report.