You might want to look at this one. It names two other people also claiming they found long stringy clots.
Also, this might be the facebook page of Richard Hirschman.
https://www.facebook.com/richard.hirschman.5
It mentions he went to embalming school in 2004 and studied Aviation stuff in Alabama.
““Most of the individuals I embalmed and saw these changes were over the age of 75 and lived in nursing facilities, except for two men in their early fifties.”