The plane reportedly belonged to Jeffrey Buckalew, a managing director with Greenhill & Co. (GHL) and head of the firm’s North American M&A advisory business. He was flying toward Atlanta, with his wife and two children also aboard. The other passenger was Rakesh Chawla, a Greenhill managing director focused on the financial services sector.

It crashed on I-287 just outside of Morris Township, New Jersey. No cause is yet known.

Greenhill chairman Robert Greenhill and CEO Scott Bok said the following in a joint statement: “The firm is in deep mourning over the tragic and untimely death of two of its esteemed colleagues and members of Jeff’s family. Jeff was one of the first employees of Greenhill. He and Rakesh were extraordinary professionals who were highly respected by colleagues and clients alike. They will be sorely missed and our sympathies go out to their families and friends.”