Rittman police are investigating after a dozen trees were stolen from the Ohio Western Reserve National Cemetery.  According to police, the trees, which were rather large, were waiting to be planted as part of a major expansion project.  Police say whoever took the trees likely would have needed access to some heavy-loading equipment to move them, and could be landscapers.   It is believed the trees were stolen sometime between Monday and last Thursday.  Anyone with information on the trees is asked to get in contact with the Rittman Police Department.