Michigan resident Matthew DePalma allegedly planned a bomb attack on the 2008 Republican Convention at the Xcel Energy Center in St. Paul, Minnesota.MSNBC: Michigan man planned to bomb GOP convention, feds say (September 3, 2008) DePalma was arrested in a Minneapolis apartment on Saturday, August 30, two days before the convention was scheduled to begin.MSNBC: Michigan man planned to bomb GOP convention, feds say (September 3, 2008)