(Fond du Lac) Police in Fond du Lac prevented a man armed with a knife from jumping off a ledge on Johnson Street over traffic on Interstate-41 Saturday morning. Officers responded to the intersection of Johnson Street and Pioneer Road for a man who was suicidal. He told officers to kill him then managed to climb around a fence and held onto it while standing on a ledge above the interstate. The incident ended without anyone getting hurt, it took about ten minutes for officers to talk the man down. He is in custody and getting treatment.