Jack Antonoff Riffs on JFK's assassination

Taylor Swift's producer is also a student of history.

Best known as the nerdy-looking frontman for pop rock act Bleachers,Jack Antonoff is much too thoughtful to be a pop music celebrity. . Though he broke into the mainstream as the guitarist for Fun, Antonoff also wrote a hit song “Brave” with Sara Bareilles, and wrote and produced three tracks from Taylor Swift’s latest record.

In his free time, Antonoff …