Gun Advocates, Some in Law Enforcement Oppose Feinstein's Gun Ban; New Mexico Teen Kills Family.
MALVEAUX: U.S. Senators propose federal assault weapons ban not sitting well with some gun advocates and some members of law enforcement. We're talking about California Democrat Dianne Feinstein's plan. Yesterday, she introduced a bill that would ban more than 150 types of assault weapons along with certain types of gun magazines. The NRA's response was immediate. The group says, quote, "The American people know gun bans do not work. And we are confident Congress will reject Senator Feinstein's wrong-headed approach." CNN talked to a South Carolina sheriff, who called Senator Feinstein's bill scary, and says he will not enforce any federal gun ban that he sees as unconstitutional.</s>AL CANNON, SHERIFF, CHARLESTON COUNTY SHERIFFS DEPARTMENT: Another element that I strongly disagree with is the idea that, somehow or another, this is going to prevent the kind of violence that -- that everybody is concerned about. I think there is some practical problems associated with things like the magazine capacity. But I will tell you that I think that much of this is taking advantage of our grief and people's general lack of information and understanding about firearms in general.</s>MALVEAUX: Senator Feinstein's bill, it is the most ambitious piece of gun violence legislation that has been put forward since December's school massacre in Connecticut. A New Mexico teen is accused of the most horrific crime imaginable, killing his mother, father and three younger siblings in cold blood. Nehemiah Griego was arrested when he went to church later that day. A staff member suspected that something was wrong and alerted police. Our Kyung Lah has that story.</s>KYUNG LAH, CNN CORRESPONDENT (voice-over): The heart-breaking details of what happened at the Griego home start with young Nehemiah arguing with his mother, according to detectives, who say, when she went to sleep, the 15-year-old took his father's .22 caliber rifle and shot her in the head. That woke up his brother. Investigators say Griego lifted his dead mother's head and showed it to the 9-year-old before killing him as well. Investigators say his 5-year-old sister, Jael, and the youngest member of the family, 2-year-old Angelina were next. At this point, the investigators say Griego changed weapons, and waited hours until his father, Greg, came home. Detectives say the one-time gang member and now pastor was shot in the back and killed with his own A.R.-15. (on camera): Investigators believe the boy wasn't done yet, saying he reloaded the A.R.-15 and the .22 caliber rifle and put them with more ammo into the family minivan. Investigators say he wanted to come to this Wal-Mart. Why? According to the criminal complaint, to murder more people in a populated area, and then die in a gunfight with police. (voice-over): But for some reason, the teen changed his mind and instead drove to his family's church. Griego left the guns in the van and went inside where he spent the day like an average teenager, hanging out with his girlfriend at the church's skate park, basketball courts and bookstore. The first sign of trouble at the mega-church was when Pastor Justine Marbury was told by a parishioner that something was wrong with Griego's family, so he asked the 15-year-old if he knew anything.</s>JUSTINE MARBURY, PASTOR: What he was saying was, my family is dead.</s>LAH: Griego told the pastor and Vince Harrison he had actually been home and discovered his dead family, but for some reason did not call police.</s>VINCE HARRISON, CHURCH MEMBER & FORMER HOMICIDE POLICEMAN: Just his behavior was real quiet and cold, and a matter of fact. And the red flags started going up.</s>LAH: Harrison and the pastor decided to take Griego to the house to see if the story was true. But a mile from the house, Harrison felt something he hadn't since his days as a homicide cop.</s>HARRISON: Something evil was not right. It felt like darkness.</s>LAH: He pulled over and got out of the car so Griego couldn't hear him call 911. Sheriff deputies met them at the house. They used Griego's key and found the bodies. Deputies arrested the teen quietly. Authorities say he eventually confessed and told officers he started his killing spree because he was angry with his mother. Griego seemed disconnected, say officers, only getting excited when he talked about his love of violent video games. A stunning turn for his church community, who saw the youngster grow up as a normal child, until the day of the murders.</s>MALVEAUX: That was Kyung Lah reporting. Griego is now in jail. He has not entered a formal plea because a grand jury has not yet indicted him. That's it for me. Have a great weekend. Victor Blackwell takes it from here, CNN NEWSROOM. Hey, Victor.</s>VICTOR BLACKWELL, CNN ANCHOR: Hello and welcome. I am Victor Blackwell - thank you, Suzanne -- in for Brooke Baldwin. Let's get started with what is happening right now. It's claimed three lives, now bitter cold is moving over the southeast. This Arctic air system you see here is expected to bring snow and freezing rain and dangerous amount of ice to the Carolinas, Tennessee, Georgia --