On June 25, 2007, police entered Benoit's home in
Fayetteville, Georgia[115] when WWE, Benoit's employers, requested a "welfare check" after Benoit missed weekend events without notice, leading to concerns.
[116] The officers discovered the bodies of Benoit, his wife
Nancy, and their 7-year-old son Daniel at around 2:30 p.m.
EDT.
[117] Upon investigating, no additional suspects were sought by authorities.
[118] It was determined that Benoit had committed the murders.
[119] Over a three-day period, Benoit had killed his wife and son before committing
suicide.
[13][14] His wife was bound before the killing. Benoit's son was drugged with
Xanax and likely unconscious before Benoit strangled him.
[120] Benoit then committed suicide by hanging himself on his lat pulldown machine.
[119][121]
WWE cancelled the scheduled three-hour long live
Raw show on June 25 and replaced the broadcast version with a three-hour tribute to his life and career, featuring his past matches, segments from the
Hard Knocks: The Chris Benoit Story DVD, and comments from wrestlers and announcers.
[122]
Toxicology reports released on July 17, 2007, revealed that at their time of death, Nancy had three different drugs in her system: Xanax,
hydrocodone, and
hydromorphone, all of which were found at the therapeutic rather than toxic levels. Daniel was found to have Xanax in his system, which led the chief medical examiner to believe that he was sedated before he was murdered. Benoit was found to have Xanax, hydrocodone, and an elevated level of
testosterone, caused by a synthetic form of the hormone, in his system. The chief medical examiner attributed the testosterone level to Benoit possibly being treated for a deficiency caused by previous
steroid abuse or testicular insufficiency. There was no indication that anything in Benoit's body contributed to his violent behaviour that led to the murder-suicide, concluding that there was no "roid-rage" involved.
[123] Prior to the murder-suicide, Benoit had illegally been given medications not in compliance with
WWE's Talent Wellness Program in February 2006, including
nandrolone, an
anabolic steroid, and
anastrozole, a
breast cancer medication which is used by
bodybuilders for its powerful
antiestrogenic effects. During the investigation into
steroid abuse, it was revealed that other wrestlers had also been given steroids.
[124][125]
After the double-murder suicide, former wrestler
Christopher Nowinski contacted Michael Benoit, Chris's father, suggesting that years of
trauma to his son's brain may have led to his actions. Tests were conducted on Benoit's brain by Julian Bailes, the head of neurosurgery at
West Virginia University, and results showed that "Benoit's brain was so severely damaged it resembled the brain of an 85-year-old
Alzheimer's patient."
[126] He was reported to have had an advanced form of dementia, similar to the brains of four retired NFL players who had suffered multiple concussions, sank into depression, and harmed themselves or others. Bailes and his colleagues concluded that repeated concussions can lead to
dementia, which can contribute to severe behavioural problems.
[126]