SIOUX FALLS, S.D. – Authorities have arrested a 43-year-old man after they located explosive devices and firearms at his residence while serving a search warrant in connection with multiple area burglaries. Authorities say they connected 43-year-old Mark Einerwold to three separate burglaries throughout June and July in Tea and Dell Rapids. Authorities served a search warrant at Einerwold’s residence in the 1100 block of South Blaine Avenue in Sioux Falls at around 4:45 p.m. on Tuesday. While serving the search warrant, detectives found what they say were bomb making materials and chemicals. The Sioux Falls Police bomb squad were called...