This is Part 3 of a Pulitzer-winning ongoing series exploring the financial scandal surrounding the Supreme Court. For the other parts, or to discuss the series as a whole, click here.

Crow paid for private school for a relative Thomas said he was raising “as a son.” “This is way outside the norm,” said a former White House ethics lawyer.

In 2008, Supreme Court Justice Clarence Thomas decided to send his teenage grandnephew to Hidden Lake Academy, a private boarding school in the foothills of northern Georgia. The boy, Mark Martin, was far from home. For the previous decade, he had lived with the justice and his wife in the suburbs of Washington, D.C. Thomas had taken legal custody of Martin when he was 6 years old and had recently told an interviewer he was “raising him as a son.”

Tuition at the boarding school ran more than $6,000 a month. But Thomas did not cover the bill. A bank statement for the school from July 2009, buried in unrelated court filings, shows the source of Martin’s tuition payment for that month: the company of billionaire real estate magnate Harlan Crow.