Sympathizers of the Islamic State and the Levant (ISIL) use Twitter to promote justifications of mass casualty violence perpetrated against civilians by the terrorist group, according to a new study led by Karyn Sporer, an assistant professor of sociology at the University of Maine. University of Nebraska at Omaha researchers Michael Logan, Gina Ligon and read more Sporer finds ISIL supporters promote justifications of terrorist group’s violence on Twitter