http://seattletimes.nwsource.com/html/localnews/2003042191_wales06m.html
The prime suspect in the killing, a Bellevue airline pilot, had been targeted in a fraud case prosecuted by Wales, who worked for 18 years in the Seattle U.S. Attorney's Office.
Her decision came shortly after the Seattle FBI office received an anonymous letter written by a person claiming responsibility for killing Wales. The letter was mailed from Las Vegas in January, around the time the Bellevue pilot visited that city, sources said.
The letter was written by someone claiming he was hired to kill Wales, but contained what the FBI described as misleading information meant to throw off investigators.
Agents have been trying to directly link the letter to the pilot, who could be charged with obstruction of justice if he wrote it.
Wales, 49, an assistant U.S. attorney who mostly handled white-collar crimes, was shot about 10:40 p.m. Oct. 11, 2001, while sitting at his computer in his Queen Anne home. He was hit by several shots fired from his backyard.