(Woodbury, MN) -- The Minnesota State Patrol is investigating a fatal pileup involving a semi and three other vehicles on Interstate 94 in Woodbury. Troopers say 33-year-old Andrew Russ of Woodbury was killed when a semi rear-ended his car, which then went on to strike two other vehicles on I-94 at Radio Drive. The semi driver was 28-year-old Shane Michaels of Marinette, Wisconsin. He wasn't hurt but one of the other drivers suffered a non-life-threatening injury.