◆ SpookStack

PG 9-2330 During May and June of 197i, continuing efforts have been made to develop suspects in this matter with the U.S. Postal Inspector, U.S. Secret Service, Police Department, Alcohol, Tobacco, and Firearms Division, all Pittsburgh, Pa., as well as the McKeesport, Duquesne, and Homestead Police Departments. Contact with these agencies during this period failed to develop any information as to the writer of the letters involved. No logical suspects to date have been developed.