O'Neill's ruling came after lawyers for the 79-year-old TV star argued that his trial should be moved to Philadelphia or the Pittsburgh area. The larger, more diverse population would make it easier to find unbiased jurors, lawyer Brian McMonagle argued, but even then, he said, there was no guarantee that Cosby could get a fair hearing.
"Unless you've been living under a rock, the message that has been promoted, in an insidious fashion, is that Bill Cosby is guilty and that Bill Cosby is a serial rapist," McMonagle said. "I do not believe that there's a place anywhere in this country now where he can receive a fair trial. Not here, not anywhere. I hope I'm wrong."
Prosecutors accused the defense of trying to shop for a jury.
Cosby has pleaded not guilty to charges that he sexually assaulted Constand at his suburban Philadelphia home. The Associated Press doesn't typically identify people who say they are victims of rape unless they have come forward publicly, as Constand has done.
Monday's hearing came after the judge dealt a blow to the prosecution by limiting the number of accusers who can testify at the trial. Prosecutors wanted to put 13 more women on the stand to bolster charges that Cosby had drugged and molested women before the 2004 encounter with Constand.
O'Neill ruled Friday that only one of those accusers may testify. She worked for Cosby's agent at the William Morris agency and said Cosby drugged and molested her during a lunch meeting in Los Angeles in 1996.