A Minnesota man is going to plead guilty to robbing a Sioux Falls bank last year. According to court documents, Melvin Gatlin held up the US Bank near 41st Street and Marion Road back in March. He admits showing the clerk a note and getting away with more than 35-hundred dollars cash. Authorities used surveillance video to get his license plate number and track him to Richfield, Minnesota, where they made an arrest. A date for a plea hearing has not been set, but Gatlin faces up to 20 years behind bars when sentenced.