NEWARK — Alan Zegas, David Wildstein’s lawyer, said outside the courtroom that his client was still being questioned by government investigators and was “prepared to testify.”

“There is a lot more that will come out,” he said. “Unfortunately, I am not in a position to talk about the matter in detail.”

He repeated that Gov. Chris Christie “knew of the lane closures as they occurred” and that “evidence exists” that proves it.

Mr. Zegas added that Mr. Wildstein was “intimately involved” with the plot to snarl Fort Lee’s traffic and is now full of remorse.

“He deeply regrets what occurred that weekend in 2013,” Mr. Zegas said.

Mr. Wildstein stood beside him silently, then walked fast past reporters to a waiting Town Car.