multiple people injured in a mass shooting at an ohio walmart. this guy walked right past me with an assault rifle. and he started shooting. jericka: as millions take to the skies for thanksgiving, tracking a major storm that could impact your flight. this is united s newark airport s operation center everyone here is watching the weather and about 370 departures and 50,000 passengers trying to get out and get home on time. jericka: our living well series, raising spirits without alcohol. i just a sense of calm that i hadn t felt when i was drinking pit mr. david letterman. [applause] jericka: and david letterman returns to late-night to find some surprising changes. is anything like what you had over there down there? what, all of this weed? [laughter] david letterman, everybody! [applause] jericka: good evening, and thank you for joining us on this tuesday night. i m jericka duncan in for norah. we begin tonight with israel and hamas on the verge o