Newtown families voice support for gun control

Families of Newtown victims want the tragic memory of 12/14 - the date of the Connecticut massacre -- to spur new gun control legislation in the U.S.

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Nicole Hockley: Probably not.

Scott Pelley: But I wonder how that feels.

Nicole Hockley: That is not a good feeling.

[Voice: I'm sorry for your loss.]

Nicole Hockley: Several of the caucus members, when they realized that we were people from Sandy Hook, the vast majority of them, and spoke to us and many of them were crying with us. They weren't being callous. They just didn't know who we were.

[Voices: My heart goes out to you... we just don't want this to ever happen again.]

Nicole Hockley: It was good that they listened to us and they made the time to hear what we had to say, and that it made a difference. It's made some changes. And that's what it's all about at the end of the day.

Scott Pelley: Mark, what in your estimation is the most important change that the legislature has voted for?

Mark Barden: The universal background check is very important. And to that point, I think Connecticut has done a wonderful job. They've worked very hard and they have passed almost everything that we were hoping they would. And they have done it in a bipartisan way, which I think is a great message to send out to the other states and to the federal government as they begin this process.

Scott Pelley: Mark singles out the universal background check. Does anyone else find another part of the law important?

Bill Sherlach: I think the idea of limiting the size of the magazines is critical.

Bill Sherlach's wife, Mary, tried to stop the gunman.

Bill Sherlach: You can have a million bullets, but if you have to put them in one at a time, the ability to do any kind of real damage is significantly reduced.

Scott Pelley: The legislature has decided to limit the size of magazines in Connecticut to 10 rounds. The gunman at Sandy Hook was using 30-round magazines. I've heard the argument made, "You can change these magazine clips in these rifles in a matter of two seconds. So what difference does it make?"

Bill Sherlach: Well, I mean, there was one instance where it wasn't two seconds. And it allowed 11 kids to get out of the classroom.

Scott Pelley: Tell me about that.

Bill Sherlach: It's just a simple arithmetic. If you have to change magazines 15 times instead of five times, you have three times as many incidents as where something could jam. Something could be bobbled. You just increase the time for intervention. You increase the timeframe where kids can get out. And there's 11 kids out there today that are still running around on the playground pretty much now at lunchtime.

Scott Pelley: Who escaped from these classrooms?

Bill Sherlach: Right.

Mark Barden: Another point on changing the magazines is the data that they used or that they'll tell you it takes two seconds or three seconds or however many. That's in a controlled setting. That's at a range. That's in the comfort of your home. When you're in that situation, if you want to picture yourself murdering children in a classroom, the police are coming in to kill you, and then you're about to commit suicide, your brain is in another place. You're not neatly and effectively changing that magazine.

Nicole Hockley: And when we looked at the search warrants as well, and know that he left the smaller capacity magazines at home, that was a choice the shooter made. He knew that the larger capacity magazine clips were more lethal.