Sean Parker is a technology entrepreneur who founded the file sharing network Napster and served as the first president of Facebook. Parker met Facebook co-founders Mark Zuckerberg and Eduardo Saverin in 2004; he later became the company’s president in summer 2004.  In 2005, Parker was asked to leave Facebook as president after being arrested for cocaine possession. 
In 2010, Parker donated $100,000 to the California Proposition 19 campaign, which would have legalized marijuana throughout the state.  In 2016, he donated $400,000 to Proposition 63 campaign which would have required background checks for all ammunition purchases in California. 
Parker played an instrumental role in adding provisions for Opportunity Zones in the Tax Cuts and Jobs Act of 2017.