WILLMAR—A man who grew up in Willmar has acquired three Burger King restaurants, including Willmar’s Burger King on First Street South. Mike Knoop, the owner and operator of Crown King Properties LLC, previously worked at a Willmar location in 1992 as an assistant manager, according to a news release announcing his acquisition of BK restaurants in Willmar and Hutchinson, as well as Hillsboro, North Dakota. Knoop has operated five restaurants in his time as a franchise owner beginning in