James McDonald, a prominent adviser to wealthy families as chief executive of investment management group Rockefeller & Co, died in an apparent suicide, on Sunday, local authorities said on Tuesday.
McDonald, 56, was found with a single gunshot wound in his car near a strip mall in Dartmouth, Massachusetts on Sunday afternoon. Police are still investigating.
"The preliminary investigation concludes that this was an apparent suicide," said Gregg Miliote, a spokesman for Bristol County District Attorney Sam Sutter.
McDonald was credited with growing Rockefeller & Co, the New York-based family office established by oil tycoon John D. Rockefeller in 1882 to manage the dynasty's assets, into a broader investment management company with roughly $28 billion in assets.
