With two dramas based on serial killers on tap from Fox and NBC, the subject of how TV contributes to violence in culture is being brought up at industry events in the wake of the recent school massacre in Connecticut. "Most people at this network have children and really care about the shows that we're putting out there. It's always in our mind. This just brought it to the forefront," NBC Entertainment Chairman Robert Greenblatt said at the Television Critics Association press tour in California.