After a four and a half years investigation, federal agents arrested six members of the Resistance Conspiracy, on May 12, 1988, and charged them with bombings of the Capitol, Fort McNair, and the Washington Navy Yard. On December 6, 1990, federal judge Harold H. Greene sentenced Laura Whitehorn and Linda Evans to lengthy prison terms for conspiracy and malicious destruction of government property. The court dropped charges against three co-defendants, two of whom (including Susan Rosenberg) were serving extended prison sentences for related crimes. Whitehorn was sentenced to 20 years; Evans, to 5 years, concurrent with 35 years for illegally buying guns. On January 20, 2001, the day he left office, President Bill Clinton commuted Evans's and Rosenberg's sentences.