(Fargo, ND) -- Fargo Police say they are notifying the community that a registered sex offender, Tyrie Guy Gardner, registered his address at 735 14 St N in Fargo, ND.  Gardner has been assessed as a high-risk offender by the North Dakota Risk Assessment Committee.  Police say Gardner was convicted on April 26, 2012 in Burleigh County District Court ND for Gross Sexual Imposition and his victim was a female under the age of 15.  He is a lifetime registrant.