off. norah: our exclusive reporting about the u.s. navy s mission to stay prepared. this is not a 9-to-5 job, is it? no, it s not, it s around-the-clock. the prosecution is trying to understand, when did you decide to lie about your whereabouts? i don t know exactly when i made the decision to lie about that. a brutal winter storm rips across the country, including parts of california under blizzard warnings for the first time in history. norah: and a temple university officer is laid to rest. chris is physically gone, but his spirit, love, and laughter will live on through all of us as we continue his legacy. announcer: this is a special edition of the cbs evening news with norah o donnell, reporting tonight from the uss nimitz. norah: good evening, and welcome again, from here in the western pacific ocean, where we are on vulture s row, the commander s observation point high above the busy deck of the uss nimitz that has just returned