| Age / Sex / Race: | 17 / Male / White |
| Location of Homicide: | Potomac River, 2 miles east of the US RT. 522 bridge, 2 miles east of Hancock |
| County: | Washington |
| Date / Time: | 7 / 11 / 1975 |
| Cause of Death: | Shooting |
| Details: | The body of John William Clark was located in the Potomac River. Autopsy revealed Clark had died of gunshot wounds. It was alleged Clark left Washington D.C. with a companion, however this person was not identified. |
| Investigator: |
Detective Sergeant John Cook Maryland State Police - Cold Case Unit 1201 Reisterstown Road Pikesville, Maryland 21208 410-290-0050 jgcook@mdsp.org |