World Trade Center Bombing Remembered 20 Years Later Six people died in 1993 when terrorists detonated a truck bomb in the building's garage. Michelle Obama on Sasha and Malia Growing Up Robin Roberts talks with the first lady about how the president is preparing for teenage daughters. Millionaire Busted in Alleged Double-Murder Plot Phoenix police say Fred Knadler, 75, tried to pay someone to kill his wife and co-worker. Trayvon Martin's Parents to Hold Hoodie Vigil One-year anniversary of the teen's death will be marked by a candlelight vigil. Nicholas Hoult Says 'Jack The Giant Slayer' Nothing Like Original Folktale The British actor talks about spending most of the movie in front of a green screen. Jordan Johnson Testifies in Sexual Assault Trial Dan Abrams discusses the trial of the former University of Montana quarterback. Monster Blizzard Wreaks Havoc on Midwest Winter storm brings hurricane-force winds, blizzards, tornadoes and flooding. Little Kayla Jumps for the Moon Two-year-old Kayla Moffet's fascination with the moon has gone viral on YouTube. C. Everett Koop, Former Surgeon General, Dies at 96 Koop warned of the dangers of smoking and the AIDS virus during Reagan administration.