A look back at the news that shaped 2013 with ABC Perspective.

Pope Benedict announced he would step down.  Two bombs exploded at the finish line of the Boston Marathon.  For a decade, Amanda Berry, Gina DeJesus and Michelle Knight lived in captivity.  An Arizona jury handed down a verdict in the murder trial of Jodi Arias.  An E-F5 tornado touched down in Moore, Oklahoma, destroying two elementary schools and killing 23 people, including seven students.  The murder trial of George Zimmerman played out very publicly throughout the year.  And we remember those we lost.