Final answer:
The referenced materials do not provide specific information about an openly gay national volleyball player named Hernan, but they discuss the broader context of LGBTQ+ activism and rights, spotlighting individuals like Jose Julio Sarria and events like the formation of a Gay-Straight Alliance.
Step-by-step explanation:
LGBT Rights and Historical Activism
The query about 'what happened to the openly gay national volleyball player named Hernan?' does not directly correlate with a specific historical event involving an openly gay volleyball player by that name readily identifiable in available sources, including the referenced book 'From the Closet to the Courtroom' by Carlos A. Ball. However, the struggle for LGBTQ+ rights and acceptance is heavily documented, and individuals like Jose Julio Sarria have played pivotal roles in challenging discrimination and advocating for equality. Sarria, a Latino gay activist, provided a symbol of pride through his theatrical drag performances during a time when being LGBTQ+ was stigmatized. His defiance against police harassment and morals charges was a significant step towards LGBT rights, just as the formation of the town's first Gay-Straight Alliance was an essential move towards LGBTQ+ visibility and support in the community.
While the referenced materials don't directly answer the initial question regarding Hernan, they highlight the broader challenges and actions taken by LGBTQ+ individuals and their allies in the fight for recognition and equal rights. It is within this historical context that the struggles of any LGBTQ+ sports figures, including any openly gay national volleyball players, should be understood.