'Nightline' Daily Line, March 12: U.S. Soldier's Alleged Deadly Rampage

We're enjoying sunny and warm, June-like weather in March here in New York City, but the talk of the newsroom has been the story about a U.S. soldier accused of going on a deadly shooting rampage in an Afghan village. We'll share more as the story develops.

8:18 p.m. ET: Is it getting hot in here? Recent data from the  National Weather Service shows temperatures could climb over 70 degrees this week from the Dakotas to the East Coast. Since Friday, over 230 record highs have been broken across the northern part of the country.

Credit: ABC News

So what's going on here? Well as this fun graphic will show you, the jet stream is being pushed way up north into Canada by a high-pressure system, which is carrying balmy air from the south. Can we say, spring has sprung?

Credit: ABC News

4:29 p.m. ET: What was lost now is found? A team of researchers has spent nearly 40 years searching for a l ong-lost painting by Leonardo Da Vinci, and may have located it beneath another work that was painted over it.

Credit: David Yoder/National Geographic Society

3:18 p.m. ET: @jonkarl tweets: The Santorums opted for ribs at Dreamland BBQ in Tuscaloosa.

Credit: @jonkarl

2:04 p.m. ET: A gorilla is reportedly at large in Alabama, but authorities say one sighting was made by a child. Maybe it's Sasquatch?

1:49 p.m. ET: Soldier UPDAT: The  Army staff sergeant who allegedly went on a rampage and killed 16 Afghans as they slept in their homes had a traumatic brain injury at one point and had problems at home after his last deployment, officials tell ABC News.

12:36 p.m. ET: Remember the " new iPad" announcement last week? Despite gripes that it's not the iPad3, pre-orders have sold out and people are already lining up outside Apple stores across the country to get one, our ABC News tech editor Joanna Stern reports.

11:03 a.m. ET: Nightline morning meeting starts.

8:20 a.m. ET: ABC's Juju Chang is up early to appear on "Good Morning America" this morning, with her story on the Bates family, now with a brood of 19 kids and a TLC reality TV show on the way. The family says they are not in competition with the original big family TLC stars, the Duggars of "19 Kids and Counting," but that each new child is another "blessing." The Bates are evangelicals who do not believe in birth control.

Juju spent a few days with the family at their home in Lake City, Tenn., to learn the secrets to providing for 21 people with a new baby in the house. Read her blog HERE.

Credit: ABC News

7:50 a.m. ET: ABC's Jake Tapper tells us that the White House is worried about the incident in Afghanistan and that President Obama took the unusual step of telephoning Afghan President Hamid Karzai in mid-afternoon Sunday - which was late at night, Afghanistan time.

Read Jake's full story HERE.

Credit: Official White House Photo by Pete Souza

7:04 a.m. ET: We started getting reports yesterday of a U.S. soldier who left base in the middle of the night and went on an alleged shooting rampage, killing 16 Afghan civilians - most of them children and women.