Fred Black was the acting US Attorney in Guam between 1991 and 2003. In November 2002, Black began investigating a contract between Abramoff and Guam's highest court and asked for DOJ's assistance. Since Black's communication happened to raise serious questions about the integrity of a high-level federal official who was being renominated to his post, Justice passed the information on to then-White House counsel Alberto Gonzales.
A grand jury, convened by Black, subpoenaed the Abramoff contract on November 18, 2002. The next day the Bush Administration announced that Black would be replaced as US Attorney and demoted him to Assistant US Attorney, after twelve years on the job. His replacement, Leonardo Rapadas, had close ties to the Guam Republican Party, including the support of Abramoff and another lobbyist with access to Karl Rove.
A subsequent Justice Department Inspector General report found that none other than Kyle Sampson, Gonzales's disgraced chief of staff who resigned on March 13, handled Black's dismissal.
see
http://www.thenation.com/blogs/notion?pid=177639