Police: Serial Fast-Food Armed Robbery Suspect CaughtMaple Grove Police have arrested a man suspected of a month-long armed-robbery spree that mostly targeted fast-food restaurants along the Interstate 94 corridor. According to authorities, Douglas Wayne Gravelle was taken into custody on Thursday. This arrest comes after a string of armed robberies which began in early September. Fast-food restaurants in Sauk Rapids, St. Cloud, Big Lake, Clearwater and Monticello were targeted. A Game Stop video game store in Monticello may also have been robbed by Gravelle earlier this month.