OXFORD, Miss. — A Mississippi man charged with making a deadly poison sent to President Barack Obama and others was ordered held without bond until a hearing later this week when prosecutors are expected to describe what evidence they have against him James Everett Dutschke made a brief appearance Monday in federal court wearing an orange jumpsuit with his hands shackled. Authorities spent several days last week searching Dutschke’s home and former business but have said very little about the suspect beyond a news release announcing the charge of making and possessing ricin over the weekend.