The charges involved the secret videotaping in 2006 of Councilman Eugene Robinson, who says he was lured to a motel and into sex with a prostitute.
The tape was leaked to the media in an attempt to get Robinson, who also is a minister, to resign. He refused and contacted authorities instead.
Prosecutors say the plan was masterminded by former Council President Craig Callaway. They say it was payback for Robinson switching his political allegiance.
