Armstrong police chief fourth city official arrested after multi-year investigation Police chief Craig Merrill joins Mayor Greg Buum, city clerk Tracie Lang and former city clerk Connie Thackery, who were all charged Friday with 21-joint counts of felony and non-felony charges. Armstrong police chief fourth city official arrested after multi-year investigation By Lauren Andrego and Gage Cureton | February 15, 2021 at 6:39 PM CST - Updated February 15 at 7:22 PM ARMSTRONG, Iowa (KEYC) - Emmet County Sheriffâs Office arrested Armstrong police chief Craig Merrill on Saturday while he was ice fishing on Lake Tuttle in Minnesota, just across the border from where he works. Heâs the fourth Armstrong city official to be arrested, and now joins the cityâs mayor, city clerk and former city clerk.