How can a terrorist-sympathizer find a place of leadership in the Religion of Peace?

Perhaps because his ideology is consistent with Islam's founder's. From Jihad Watch:

Another example of the fact that there is no dividing line in the Islamic community between peaceful and violent Muslims, and that prominent "moderates" can easily become "radicals": remember that Imam Fawaz Damra was one of the signers of the CAIR-endorsed fatwa against terrorism issued some time ago by the Fiqh Council of North America. Fawaz Damra update from AP, with thanks to the Constantinopolitan Irredentist:

Federal authorities arrested an Islamic religious leader Friday as they began the process of deporting him for lying about ties to terrorist groups.

Imam Fawaz Damra, the spiritual leader of Ohio's largest mosque, was convicted in June 2004 of concealing ties to three groups that the U.S. government classifies as terrorist organizations when he applied for U.S. citizenship in 1994.

That conviction was upheld in March, clearing the way for U.S. Immigration and Customs Enforcement to begin deportation proceedings.

Damra, 44, was arrested early Friday without incident, the immigration office said....

The Palestinian-born Damra, who is the imam, or spiritual leader, at the Islamic Center of Cleveland, immigrated to the United States in the mid-1980s.

In Damra's trial last year, prosecutors showed video footage of Damra and other Islamic leaders raising money for an arm of the Palestinian Islamic Jihad, which has been listed as a major terrorist group by the State Department since 1989.

Jurors also were shown footage in which Damra called Jews "the sons of monkeys and pigs" during a 1991 speech and said "terrorism and terrorism alone is the path to liberation" in a 1989 speech.