David Wildstein is the one who actually shut down the traffic lanes. He worked for the New York & New Jersey Port Authority and happens to be Mr. Christies close friend from high school. He was also appointed to the Port Authority by Christie. So it is very hard to believe that Christie knew nothing about this.
Mr. Christies handpicked chairman of the Port Authority, David Samson, was also involved in the closings, according to the emails, which describe his efforts to retaliate against New York officials who had not been told of the changes and sought to ease the gridlock.