I don't know about you, but to me this all sounds like much ado about nothing. There is zero evidence that GM benefited in any way from her relationship with ER or any other prof. And btw, ER was a young assistant prof back then. Anyone going after him for profesional gain would be seriously dumb.
From unknown postdoc lost in a nowhere University in Europe to courtesy AP appointment making 250K USD with zero taxes. No gain?