Chris Benoit was found to have Xanax as well as hydrocodone in his system. It was also revealed that in his body was an elevated level of testosterone, which is caused by synthetic testosterone and was the only steroid in his system. The chief medical examiner has considered this a mystery, but attributed it to Benoit possibly being treated for a testosterone deficiency caused by previous steroid abuse. The examiner also ruled that the drug GHB was not present in any of the three bodies, and that there was no indication that anything in Chris'' body contributed to his violent behavior that led to his death as well as his wife and son''s, concluding that there was no "roid rage" involved.  Many of Benoit''s close friends, including former WWE wrestler Chris Jericho defended the accusations of "roid rage", saying Benoit was a quiet person, and said that he believed his friend was fighting a private battle with mental illness. In 2003, Chris Benoit was inducted into the Wrestling Observer Newsletter (WON) Hall of Fame. As a result of Benoit''s double murder-suicide, his induction will undergo a recall election in 2008. Benoit will be removed from the Hall of Fame if 60 percent or more of the WON Hall of Fame voters elect to remove him. This is similar to the policies of the Baseball and Pro Football Halls of Fame.  On August 30, 2007, Benoit was discovered to have been given illegal steroids not in compliance with WWE''s Talent Wellness program in February 2006. Benoit received nandrolone and anastrozole.
Eddie Guerrero and Brian Adams, were discovered to have been given steroids prior to their deaths during this investigation, as well as former WWE superstar Sylvain Grenier and eleven current WWE superstars, which have been suspended in accordance with the WWE Talent Wellness program. After the double-murder suicide,Benoit''s father, Michael Benoit, was contacted by former wrestler Chris Nowinski. Chris Nowinski suggested that years of trauma to Chris Benoit''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." Benoit''s brain was shown to have an advanced form of dementia and was similar to the brains of four retired NFL players who have 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 behavioral problems. Benoit''s father suggests that brain damage may have been the leading cause of his crime