Senate holds hearings on gun control (18 images)

Senator Dick Durbin (D-IL) questions panelists during a Senate Judiciary Committee hearing on gun violence on Capitol Hill in Washington, DC on January 30, 2013. UPI/Pete Marovich

Retired Navy Capt. Mark Kelly, husband of former Rep. Gabrielle Giffords and co-founded Americans for Responsible Solutions, listens as David Kopel, adjunct professor of advanced constitutional law at Denver University, testifies before a Senate Judiciary Committee hearing on gun violence on Capitol Hill in Washington, DC on January 30, 2013. UPI/Pete Marovich

James Johnson, chief of police for Baltimore County, Maryland and chairman of the National Law Enforcement Partnership to Prevent Gun Violence, testifies before a Senate Judiciary Committee hearing on gun violence on Capitol Hill in Washington, DC on January 30, 2013. UPI/Pete Marovich

Gayle Trotter, attorney and senior fellow of the Independent Women's Forum, testifies before a Senate Judiciary Committee hearing on gun violence on Capitol Hill in Washington, DC on January 30, 2013. UPI/Pete Marovich