In a statement on the matter, Judge Bonnie Dumanis said the following:
After a thorough review of the investigation into the September 6, 2009 incident at the Poway home of Shawne Merriman, our office has determined there is insufficient evidence to prove beyond a reasonable doubt that any crime was committed. This case is now closed. No further comment will be made.
Meanwhile, it's still utterly baffling to me that Tila Tequila actually called the cops on a man who'd bound and gagged her.