An ex-soldier has been arrested in connection with a bomb planted at a Martin Luther King Day parade that could have killed hundreds.
FBI vehicles converged on a home about 75 miles north of Spokane, Washington, earlier today and arrested Kevin William Harpham, 36, who has been linked to white supremacist groups.
The bomb was found on January 17 inside a backpack by city workers on the side of the street before the start of the parade.