Ex-prosecutors say the FBI’s approach in a campaign cash sting that snared a onetime top aide to former Democratic Gov. Ed Rendell suggests more public corruption arrests are coming.

The sting that targeted John Estey raises many questions, but mostly one: Who else may have taken the bait from a phony company set up by the FBI trying to root out public corruption in the state Capitol?

George Parry, a Philadelphia attorney and a former prosecutor, says the FBI doesn’t set up fake corporations just to take down one person.

The 53-year-old Estey is scheduled to plead guilty to wire fraud in federal court in Harrisburg on Tuesday.

Federal prosecutors and Estey’s lawyer aren’t saying what led the FBI to Estey, or whether Estey helped prosecutors find other targets.

(AP)