Who is Jared Loughner? Investigation Into Arizona Shooting Continues Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email People gather for a vigil at University Medical Center for U.S. Rep. Gabrielle Giffords (D-AZ), who was shot during an event in front of a Safeway grocery store January 8, 2011 in Tuscon, Arizona. ( Laura Segall / Getty ) Produced by PRI and WNYC