The ex-husband of Tamerlan Tsarnaev’s sister told the New York Times in an e-mail that the Boston bomber
“…was looking for connections between the wars in the Middle East and oppression of Muslim population around the globe. It was very hard to argue with him on themes somehow connected to religion. On the other hand, he did not hate Christians. He respected their faith. Never said anything bad about other religions. But he was angry that the world pictures Islam as a violent religion.”
He certainly did a bang-up job of dispelling the idea.