Jamake Highwater
In the 1980s, Native American activist Hank Adams found out that Marks was not really Native American and printed what he knew in newspapers.  For a while, he thought Marks was really Gregory J. Markopoulos, a moviemaker.  Markopoulos spoke to Adams and showed he wasn't Marks. In 1986, Adams sued Marks. Adams said in the lawsuit that Marks had lied about being Native American so the federal government would give him money for his work. The court dismissed the charges.  However, Marks stopped asking for government money for projects about being Native American at about this time.