(Pittsburgh, PA)  --  Three students who were shot as they left a Pittsburgh high school are said to be in good to stable condition.  Pittsburgh Police spokesperson Diane Richard says all the victims are male, one was shot in the leg or foot, and the other two were grazed.  Richard remarked that it's unclear whether there was a single gunman or multiple gunmen who fired shots from a wooded area near the school.  She also said that it's believed the shooting may be related to an incident that happened in October.