The Sauk County Sheriff’s Department is investigating the death of a 50-year-old Milwaukee man Sunday.  Deputies say it looks like Jacob Herr was using a self-climbing stand to go up a tree when he fell to his death between 4:30 and 5:00 a-m.  A deer-hunting companion found Herr near the base of a tree.  He was apparently wearing a safety harness, but it hadn’t been attached to the tree.  Investigators don’t suspect foul play in the incident.