| Name | John Walter Marko |
|---|---|
| Sex | male |
| Birth Date | March 14, 1940 |
| Death Date | June 2, 1986 |
| Age at Death | 46 years, 2 months, 19 days old |
| Birth Place | Michigan |
| Death Place | Los Angeles County, California |
| Mother's Maiden Name | Mazenkowski |
| Social Security Number | 562-52-3704 |