Nothing was obtained, not the slightest imprint. I recommend Dr. Joire's book. It will open the eyes of readers who otherwise may think that the Kirlians have made a new discovery. Kervran found that living tissues were able to transmute one element to another if deemed necessary to survival or natural function of the Page 1 organism. This must necessarily involve the release or capture of neutrons which results in radioactivity.
Radiation definitely fogs photographic plates.
It is of interest that the dying animal or plant somehow puts off such energy. Of course, in magic, the capture, focus and redirection of such energies is what is intended to achieve a desired result. The energy released from intentional murder at the hands of a mass killer could possibly serve to amplify his desire to kill. The experiment of Ted Serios in thought photography indicate that a sustained and focussed image can positively affect photographic film. Most of the photos are not that well resolved, though they most definitely show understandable patterns and shapes.