Somerset County Sheriff Dale Lancaster, center, said Cpl. Eugene Cole was killed by John Williams on Wednesday in Norridgewock. Lancaster praised Cole and said it was a sad day for the department. Those at the news conference are, from left, Lt. John Cote, of the Maine State Police; Franklin Copunty Sheriff Scott Nichols; Lancaster; Penobscot County Sheriff Troy Morton; and Kennebec County Sheriff Ken Mason.