In newly obtained interrogation excerpts, some exclusive to “48 Hours,” Fotis Dulos’ girlfriend, Michelle Troconis, repeatedly denies any involvement in Jennifer Dulos’ disappearance. Source

A large Arctic air mass is pushing across the U.S. keeping millions of Americans in the deep freeze. It’s part of a nationwide polar plunge, with snow, ice and cold temperatures expected in nearly every corner of the country. Charlie Demar reports. Source

Author Kareem Rosser grew up surrounded by poverty and violence in West Philadelphia and rose to unprecedented heights. He talks to CBS News’ Jeff Glor about his memoir, “Crossing The Line,” and the inspiring way he was able to ride into a new world. Source

There is a great variety of sea life swimming in Earth’s oceans, but according to the National Ocean Service, more than 90% of the species living in them are not yet classified. So when scientists stumbled onto a toothy deep-sea “top predator” off Japan’s coast, they could not believe a fish of that size was swimming around the deep blue. Lucy Craft has more. Source

With the nation’s daily coronavirus case count down and with more vaccines secured, the Centers for Disease Control and Prevention is looking toward a step-by-step process to reopening schools. They have unveiled a new roadmap showing how it can be done. Michael George reports. Source

Waxahatchee is the performance name of Alabama native Katie Crutchfield. Singer and musician Kevin Morby is her partner in life – and sometimes when performing as well. The pair recently moved back to Morby’s native Kansas City, where they both are creating new music. Morby’s new album “Sundowner” came out this fall, and Waxahatchee’s album “Saint Cloud” was released last spring. The two joined “CBS This Morning: Saturday” to perform the song “Sundowner,” from Morby’s album “Sundowner.” Source

Like many nations, the United Kingdom has been hit hard by COVID-19. Along with the tragic loss of life, there has been economic devastation. The U.K. government said the country is facing its worse recession since the Great Frost of 1709. Holly Williams reports. Source

The Lunar New Year kicked off on Friday, ringing in the Year of the Ox. In a typical year, hundreds of millions of Chinese citizens would take trains, planes and roadways to reunite with family members. But this year, because of the pandemic, many have chosen more modern ways of getting together. Ramy Inocencio reports. Source

When scientists pulled an unfamiliar monster from the depths of a well-fished, well-explored Japanese bay, they couldn’t believe it was really a new species. Source

Waxahatchee is the performance name of Alabama native Katie Crutchfield. Singer and musician Kevin Morby is her partner in life – and sometimes when performing as well. The pair recently moved back to Morby’s native Kansas City, where they both are creating new music. Morby’s new album “Sundowner” came out this fall, and Waxahatchee’s album “Saint Cloud” was released last spring. The two joined “CBS This Morning: Saturday” to perform the song “Lilacs,” from Waxahatchee’s album “Saint Cloud.” Source