The stories are here http://seattlepi.nwsource.com/local/342354_shield06_1.html and here http://seattletimes.nwsource.com/html/localnews/2004055909_subpoenas06m.html.
Tom Carr says in this Associated Press story that he didn't know the subpoenas were issued. The story quotes Allied Law Group's Michele Earl-Hubbard.