un yang has more. >> reporter: he called costco a model company for success due to fair treatment for its workers. he talked about the need to raise the minimum wage for americans, a message he highlighted in last night's state of the union. the president said he would take steps to expand opportunities for families with or without help from congress. >> i'm choosing this to be a year of action, because too many americans are working harder than ever just to get by, much less get ahead. the scars of the recession are real. the middle class has been taking it on the chin since before the recession. the economy's been growing for four years now. corporate profits, stock prices have all soared. but the wages and incomes of ordinary people haven't gone up in over a decade. >> the president also said this could be a breakthrough year to overcome economic hardships from the last five years. his next stop is pittsburgh where he is expected to talk about his retirement plan proposal. let's go live to darcy spencer in lanham with reaction to the president's speech. darcy? >> reporter: well, un

at the live desk, i'm un yang. barbara? >> thank you. >>> today, a solemn day for the two people killed at the maryland mall shooting. columbia mall is getting ready to host a candlelight vigil for brianna benlolo and tyler johnson. the two worked at the mall's zumiez store where they were shot and killed on saturday. in days since, mourners have been paying tribute at a makeshift memorial. the vigil begins at 5:00 this evening. >>> howard county police are giving us more information about the man believed to be the gunman. investigators uncovered darion aguilar's journal. they say he had written about the shooting beforehand and even apologized to his family. the 19-year-old talked about killing people but didn't specify who his target would be. he also reportedly wrote that he knew he needed a mental health professional, and that he was ready to die. police say that after aguilar finished shooting, he turned the gun on himself. >>> d.c. mayor vincent gray says someone will be held accountable after a man died right across

un. >> we called john yang to start fulfilling its international commitments.o start fulfilling its international commitments. >> today's birthday contrasted sharply with the drop in the country last month as north korea and learn how their leader had purged his uncle. dennis rodman' is old to talk about human rights records or nuclear program has drawn criticism from several quarters, including these defectors insole -- in seoul. i am just an athlete, he told reporters. what his access can really achieve. very strange scene. last night we reported on the smog clogging many cities. of how the a story government hopes to tackle this problem. the leadingcome producer of wind power. almost a quarter of all wind turbines worldwide. david has the story. moment at a huge wind turbine. a massive blade is being maneuvered. this is the scene of a frantic boon in wind power. this engineer said it used to take two days to do one turbine. they can do to in a day. this is just the beginning. china wants to double the number of turbines in the next six years. they are instal