TribLIVE's Daily and Weekly email newsletters deliver the news you want and information you need, right to your inbox. Three months after a group of rioters attempted to halt the certification of the presidential election results by breaching the U.S. Capitol, 401 people have been arrested. Of those, Pennsylvania’s 38 arrests rank behind only Texas and Florida, with 39 each. Eleven of those charged in Pennsylvania come from the federal western district. Robert Pape, a political scientist from the Chicago Project on Security and Threats at the University of Chicago, has thus far conducted three studies on the riot, including reviewing the demographic study of those arrested.