Officer Southard disassembles the .22 rifle and .410 shotgun of Michael Jarrold, right, and father Gary Jarrold, center, at a gun buyback event Tuesday, Jan. 8, 2013, at the Tucson Police Department Midtown Substation in Tucson, Ariz. Gun owners waited in lines over an hour to relinquish their handguns and rifles in exchange for a $50 Safeway gift card.

Mike Christy/Arizona Daily Star