From the Boston Globe:
Tamerlan Tsarnaev, the older and apparently more radical of two brothers suspected in the deadly Boston Marathon terror bombings, objected to a sermon at a Cambridge mosque close to Martin Luther King Day this year in which the speaker compared the Prophet Muhammad with King, known for his advocacy of nonviolence, a mosque official said.
Yusufi Vali, a spokesman for the mosque, said Tsarnaev told the speaker, “You are a kafir [an unbeliever],” and said he was contaminating people’s minds and was a hypocrite.
Vali said, “The congregation then said, ‘You are the hypocrite.’ The congregation shouted him out of the mosque.”
Later, a respected volunteer talked with Tsarnaev and told him he needed to decide whether to stay and not shout out or stop coming to the congregation.
Vali said it was the second time that Tsarnaev had made an outburst during one of the speaker’s sermons.