06/29/2007 AT 05:15 PM EDT
The father of Chris Benoit spoke out Friday, saying he had no idea why his son killed his wife and child
and then committed suicide – but is anxious to see the results of toxicology tests.
"We have no understanding of why it happened," Michael Benoit told the Associated Press by phone from his home in Alberta, Canada. "We need some time to gather our thoughts and wait and see."
The elder Benoit, who said his family is in shock over the tragedy, added: "There's still more information that's going to come out from toxicology tests that will give us some understanding of why this happened."
Police found prescription medications, including anabolic steroids, in Chris Benoit's Fayetteville, Ga., home, where they discovered the wrestler's body and the bodies of his wife Nancy and 7-year-old son Daniel. On Wednesday, DEA agents raided the office
of Benoit's personal physician, Dr. Phil Astin, in Carrollton, Ga.
"There's definitely a nexus between the death investigation and the steroids that were given to Mr. Benoit," Special Agent Chuvalo Truesdell told PEOPLE at the time.
There has been much speculation over whether the steroids played a role in the killings. On Thursday, World Wrestling Entertainment chairman Vince McMahon addressed the subject
of so-called "'roid rage," saying on the Today
show: "Steroids may or may not have had anything to do with this. It's all speculation until the toxicology reports come back."
Meanwhile, the case took a puzzling turn on Thursday, when it was revealed that someone had altered Benoit's Wikipedia entry
to mention his wife's death hours before her body was found.
On Friday, an anonymous user with the same IP address as the person who made the chilling update claimed in an online discussion forum on Wikipedia that he or she had made the changes based on rumors and speculation, not hard evidence, the AP reports.
"I just can't believe what I wrote was actually the case," the user wrote. "I've remained stunned and saddened over it." The authenticity of the posting could not immediately be confirmed.
Police have not yet spoken out about the Wikipedia posting. WWE attorney Jerry McDevitt told the AP that to his knowledge, no one at his organization knew of Nancy Benoit's death before her body was discovered by police on Monday afternoon.