(MARINETTE, WI.)–A 76-year old Crivitz man has entered a plea of no contest in a case in which he is charged with attempted murder. Robert Dettmering had initially filed a plea of not guilty by reason of mental disease. He could serve 60-years. The incident was sparked by his son and daughter in law selling property Dettmering had deeded to them. An undercover agent posed as would be “Hit Man” which led to his arrest. The case has been ongoing for several months. Sentencing is scheduled for March 23rd.