REMEMBER the man the tabloids called The Family Guy Killer? That's Christopher Vaughn and believe it or not, he has not gone to trial yet for the slaughter of his wife and three children in 2007. When's the trial gonna be? Not sure. Stay posted. But yesterday it was revealed that detectives discovered a magazine article at the 36-year-old Vaughn's suburban Chicago home that was about staging crime scenes and "making the death appear to be a suicide."It was also revealed that the night before the murders, Vaughn--a private









