<p>A prosecutor investigating the apparent murder-suicide of pro wrestler Chris Benoit and his wife and son is questioning reports that the son had an inherited form of mental retardation called Fragile X Syndrome.</p><p>A spokesperson for World Wrestling Enterainment is also backing away from earlier statements made by company officials about the diagnosis for Daniel Benoit.</p><p>Fragile X Syndrome, a disorder affecting the X chromosome, is the most common inherited cause of mental retardation and associated developmental disabilities.</p><p>In a statement provided to the AP on Tuesday, Fayette County District Attorney Scott Ballard said "a source" has reviewed some of Daniel's medical records and "they do not mention any pre-existing mental or physical impairment."</p><p>Ballard added that family members deny Daniel suffered from the condition, and that the 7-year-old's teachers also deny reports that he was physically undersized.</p><p>Two days after the bodies of Benoit, his wife Nancy and son were found last month, WWE attorney Jerry McDevitt told the AP that the child had Fragile X Syndrome. He said the wrestling organization learned from the couple's friends and relatives that the Benoits argued over whether the wrestler should stay home more to take care of Daniel.</p><p>In an interview with the AP Tuesday, WWE spokesman Gary Davis said McDevitt first heard Fragile X Syndrome linked to Daniel Benoit in a Canadian news report.</p><p>Davis said McDevitt was "confident" that the information was accurate, after speaking with other WWE employees who knew Benoit. Although, Davis said, none of those employees specifically mentioned Fragile X Syndrome.</p><p>"A lot of people got caught up in the idea that Daniel had Fragile X Syndrome," Davis told the AP by phone from the company's Stamford, Conn., headquarters. "We were just as caught up as everyone else."</p><p>Davis said WWE has no information to contradict Ballard's statement.</p><p>"I think we have to go with what the district attorney has said as being the best, up-to-date information available right now," Davis said.</p><p>Ballard did not return multiple phone messages seeking additional comment Tuesday.</p><p>Attorney Joseph Saia, who represented Nancy Benoit in a 2003 divorce complaint she filed against her husband, also said the child "looked and acted normal."</p><p>Saia, who saw Daniel "four or five" times in 2003, said Nancy Benoit never mentioned the disability to him.</p><p>"I'm sure in our preparations (for court), she would have talked about it," Saia told the AP.</p><p>Holly McFague, a neigbor of the Benoits, said Nancy Benoit spoke with her about Daniel's medical problems in the year before she died.</p><p>"I know that there were some problems, problems and issues that she said the son had," said George Regan, the owner of a Boston public relations firm who is working as McFague's spokesperson.</p><p>Regan could not say exactly what problems Nancy Benoit referred to. He told the AP that McFague received a call from Chris Benoit on June 23, one day after authorities say Benoit killed his wife.</p><p>"He basically told her that his child and wife were sick with some type of food poisoning," Regan said.</p><p>Regan said McFague discovered the bodies inside the Benoit home on June 25, after authorities checking on the family's welfare asked her to help them gain access to the property.</p><p>Authorities have said Chris Benoit strangled his wife and son the weekend of June 23 and placed Bibles next to their bodies before hanging himself on the cable of a weight-machine in his suburban Atlanta home.</p>