NBC Nightly News

A major winter storm has dumped heavy snow and brought record low temperatures to the South. Freeze warnings are still in effect tonight for Georgia and Florida. NBC News' Aaron Gilchrist reports from the storm zone. A spokesperson for Bill and Hillary Clinton says they have agreed to testify as part of the House Oversight Committee's Epstein investigation. The House was moving closer to voting to hold the Clintons in contempt of Congress. It comes amid continued fallout from the release of millions of new Epstein documents. NBC News' Hallie Jackson reports. On Nightly News, we always try to help our viewers by telling your stories and shining a light when we hear about problems in your communities. Tonight, we are asking for your help to find Savannah Guthrie's mom Nancy who has been missing since this weekend. NBC Nightly News anchor Tom Llamas has more. Authorities in Arizona say evidence found inside the Tucson home of Savannah Guthrie's mother, 84-year-old Nancy Guthrie, is "suspicious in nature," prompting a multi-agency search and the involvement of homicide detectives as the race to find her continues. A jury found Brendan Banfield guilty on all counts for an elaborate plot to kill his wife so could be with the family's au pair. NBC News' Erin McLaughlin reports. Late today the Department of Homeland Security announced that every officer in Minneapolis will receive body cameras and that the program will expand nationwide. NBC News' Maggie Vespa has more. The U.S. and Iran are working towards holding diplomatic discussions as soon as Friday in Istanbul, four senior Middle East diplomats and a U.S. official tell NBC News. NBC News' Richard Engel reports from Tehran. 

Investigators are combing through hundreds of leads, more than 48 hours after Nancy Guthrie was taken against her will from her home. NBC News' Liz Kreutz has the latest on the investigation. A Nebraska man has been arrested and charged after two young sisters were taken by a man who connected with them first on Roblox then on Snapchat. Investigators say the girls were found and are back home safely. NBC News' George Solis has the story. On a podcast with his former Deputy Director of the FBI, President Trump made comments about the federal government being more involved in elections despite the Constitution's provision that elections are run by the states. The President made similar remarks when pressed by reporters at the White House today. NBC News' Garrett Haake reports. William Stevenson, who was married to the former First Lady for five years in the 1970s, has been arrested and charged with the murder of his current wife. NBC News' Erin McLaughlin reports. American forces shot down an Iranian drone that approached an aircraft carrier in the Arabian Sea. Late today President Trump said negotiations with Iran are moving forward. NBC News' Richard Engel has the latest. 

Investigators are still searching for clues in the disappearance of Nancy Guthrie, Savannah's mother. Senior officials briefed on the investigation say they're looking into what appears to be blood found outside her home and examining when her pacemaker appears to have disconnected from its monitoring app. NBC News' Liz Kreutz has that and more on the investigation.