Kevin O’Connor, the former U.S. attorney for Connecticut and general counsel of investment firm Point72 Asset Management, is out as the head of the Justice Department transition for the Trump administration.

The circumstances of O’Connor’s departure were not immediately clear. O’Connor had ties across the community of lawyers who served as U.S. attorneys during the George W. Bush administration, a group that included New Jersey Gov. Chris Christie. Christie was replaced as head of the transition last week by Vice President-elect Mike Pence.