500
He announced his intention to publish a book exposing Freemasonry's secrets and was arrested on trumped-up charges. He disappeared soon after, and was believed to have been kidnapped and killed by Masons from western New York.
The allegations surrounding his disappearance and presumed death sparked a public outcry and inspired the founding of the new Anti-Masonic Party in opposition to President Andrew Jackson's Democrats. (An extra 500 Points if you can name the town in New York where this occurred).
Capt. William Morgan of Batavia, New York.