Cynthia Archer spent the better part of Thursday working around her East Side home and assuring neighbors she's OK. 

The quaint, tree-lined neighborhood was the scene of an all-out FBI raid Wednesday, when law enforcement officers arrived at Archer's home at 6:45 a.m. and began collecting evidence. They even took the hard drive from an old computer Archer sold to a neighbor over the summer.

It was exhausting and scary, and a full day later Archer seemed a little shaken and embarrassed, though she reiterated that she has done nothing wrong.

"I've lived here 20 years," she said, standing in her front yard. "I feel like I need to go around and apologize to my neighbors for the fuss; let them know I'm all right."

Archer, 52, a longtime aide to Gov. Scott Walker, is part of an investigation. That much is clear, but much else with this case remains a mystery. Archer said law enforcement has ordered her to not discuss the case, and officials with the FBI and the Milwaukee County district attorney's office are not saying anything either.

The information vacuum has led to a minor media frenzy, with reporters trying to figure out if this has anything to do with Walker. 

Walker was out of state Thursday campaigning for Republicans in Kentucky, and spokesman Cullen Werwie said his office would have no comment on the raid or investigation. Former U.S. Attorney Steven Biskupic, whom Walker's campaign hired shortly after last year's election, did not return a message seeking comment.

The search of Archer's house comes amid a John Doe investigation in Milwaukee County, which started last year after another staff member working for then-Milwaukee County Executive Walker admitted to anonymously posting pro-Walker comments on political websites while on county time. Archer was director of administrative services for Walker while he was county executive.

She followed him to Madison to serve as the Department of Administration's deputy secretary. She left that post last month and went on medical leave for a "private health reason." When she returns, Archer said, she will work for the Department of Children and Families.

A John Doe investigation is a secret proceeding in which witnesses may be subpoenaed to testify. Participants are barred from discussing the case publicly.

As part of that investigation, authorities last year seized the work computer of the commenting employee, Darlene Wink, and searched her home. They also took another computer belonging to Tim Russell, then county housing director and a former Walker campaign staff member. 

Wink's attorney, Chris Wiesmueller, said Thursday he had no idea whether she was connected to the raid on Archer's house. 

"I'm really in the dark in how we get from Darlene to Cynthia Archer," Wiesmueller said. 

Archer told the Milwaukee Journal Sentinel last week she was "not involved in any way in the John Doe investigation." Archer noted Thursday that she made those statements before Wednesday's raid. She would not elaborate, however.

"I'm not worried," Archer said. "I don't even have a lawyer. I don't need a lawyer. I did nothing inappropriate."

- The Associated Press contributed to this report.