| First Name | Marvin. |
| Last Name | Grimm, Jr. |
| Year of Conviction | 1976 |
| Year of Exoneration | 2024 |
| State of Conviction | Virginia |
| Trial, Bench Trial, or Guilty Plea | Guilty Plea |
| Type of Crime | Murder |
| Life / LWOP sentence | Life |
| Gender of Exoneree | Male |
| Race of exoneree | White |
| Types of evidence at trial |
|
| Were non-public facts alleged? | Yes |
| Examples of Non-Public or Corroborated Facts and Inconsistencies | ● Stated “forced sexual assault on him” with no other detail. ● Identified location with depression in mud, where body thrown into river. BUT Police had already identified that spot when they took Grimm there. When asked to describe what he meant Grimm could not provide the details the Detective prompted him: “Did you make him place your privates in his mouth, is this how it happened?” While the statement described throwing victim’s body in river, extensive media had extensively discussed the location where the body was found. Tje account did not describe the alcohol or drugs later found in the victim’s system. And Det. showed him crime scene knife. |