Kevin Harpham, 36 was arrested at his home in Colville, Washington, on March 9 accused of planting a backpack bomb along the parade route of a Martin Luther King Jr. Day celebration was newly charged on Thursday with committing federal hate crimes. The three-page superseding indictment charges that Harpham tried to use the backpack bomb to injure individuals attending the parade, because of their "actual or perceived race, color and national origin." Harpham was also accused of using a destructive device to commit a hate crime. If convicted, Harpham faces life in prison. Harpham pleaded not guilty to charges of attempting to use a weapon of mass destruction and possessing an improvised explosive device. 1,500 people who attended the parade were re-routed after the back pack containing an explosive devise was discovered.Officials from the Southern Poverty Law Center, an Alabama-based civil rights group, said Harpham was a member of the neo-Nazi National Alliance in 2004.