Today on Mac & Gaydos...
3:35 p.m.: The shooter in Newtown was wearing a bulletproof backpack. We talk to the manufacturer of these backpacks.
4:05 p.m.: President Obama held a press conference about the two biggest issues facing the country today.
5:15 p.m.: There have been some bizarre stories here in the Valley following the Newtown shooting, including a high school kid carving the smile of the Joker from the Batman films into his face.