Today on Mac & Gaydos...
Mike Russell in for Larry Gaydos.
3:15 p.m.: There's new theories into the Newtown shooter's motivation. Could this may have been prevented?
4:15 p.m.: Can watching TV actually have a positive impact on your kids?
5:15 p.m.: The Jodi Arias Trial is up to the day of the murder, so Monday's going to be really interesting.