In the “Ready for Freddy” recording, Jane Getz says she called Henry Grimes after the alleged assault. So presumably Grimes saw the scratches, bruises and welts that Getz says were on her body. So…maybe, perhaps weeks or years after the alleged assault, Grimes wrote down what he saw, perhaps in some oblique statement; and, maybe again, some historian can find what Grimes wrote in the “Henry Grimes Papers”:
https://archives.nypl.org/mus/29957