International Business Times:

The personal address of an anti-Muslim activist was tweeted Friday from a Twitter account bearing the name of a man believed to be a British Islamic State jihadist kingpin. The tweet about Pamela Geller, who heads a group called the American Freedom Defense Initiative, came just hours after a third man connected to a plot to kill her and murder Boston police was arrested.

"#GoForth," the Tweet urged via a hashtag after revealing Geller's New York City address, apartment number and all. The Twitter account that sent out the address has since been suspended.

In May, two gunmen were killed and one security guard was injured in Texas during a controversial “draw Muhammad” contest that was organized by Geller. ISIS soon after claimed responsibility for the attack at the contest, which welcomed renditions of the Prophet Muhammad, a provocative act for many Muslims who believe that the prophet should not be depicted or mocked in any way.

[...]

The contest in Texas was organized months after the January Charlie Hebdo shooting in Paris, where nearly a dozen staffers were killed for the satirical publication's provocative depictions of Muhammad on a series of the tabloid’s covers.

The two men charged in Boston with the plot to kill Geller reportedly were working with a third man who was killed by police last week.