A group pauses in 2017, with some in prayer, at a makeshift memorial on a New York City bike path that that honors victims of an attack who were stuck and killed by a rental truck driven by Sayfullo Saipov. The Islamic extremist was convicted of federal crimes on Thursday and could face the death penalty. Craig Ruttle/AP hide caption
A group of young Muslim friends in Washington, D.C., meets occasionally to support each other in their work and discuss the struggles their community faces. Brandon Chew/NPR hide caption
In the video "Does Islam Encourage Violence?" Imam Omar Atia (left) and Zac Parsons discuss modern perceptions of Islam. Screenshot/Reclamation Studios via Youtube hide caption
Lamya Kaddor teaches Islamic studies in Germany. She's written a new book, Zum Toeten Bereit (Ready To Kill), about the experience of having five former students flee to Syria to join jihadist groups. Andre Zelck/Courtesy of Piper Verlag GmbH hide caption
Somali-American youths play basketball before the start of a September 2013 solidarity rally by the Minneapolis Somali community to denounce al-Shabab's attack of a shopping mall in Nairobi, Kenya. Less than a decade after groups of teens from Minneapolis emigrated to Somalia to join the terrorist group, more have been recruited to join the self-declared Islamic State in Syria. Eric Miller/Reuters/Landov hide caption
Cherif Kouachi, one of the brothers responsible for the Charlie Hebdo attacks, spent 20 months in Fleury-Merogis prison just outside Paris, where he crossed paths with a radical imam with ties to Osama bin Laden.This photo shows the men's building in May 2014. Charles Platiau/Reuters/Landov hide caption
Alfons R. of Hamburg, Germany (shown in this undated photo), converted to Islam at age 17. Later, he went to Turkey, then Syria, to join ISIS. He was killed this past summer. Courtesy of Manfred Karg hide caption
Ahmed Ismail, a soccer coach, runs the West Bank Athletic Club in Minneapolis. His players practice near a large Somali community where young people have been recruited to fight in overseas conflicts. Craig Lassig/AP hide caption