massacre. welcome back, everyone, to weekends with alex witt. we await a news conference any moment now from the school superintendent. police held a briefing earlier today, saying the gunman forced his way into the school friday morning. he was not let in voluntarily. 20 children and six adults were killed at the school after 20-year-old adam lanza opened fire. police say they expect to release the names of those who died soon. the victims have been positively identified by the chief medical examiner. they re still in the process of doing some of their work. as soon as that work is completed we will be prepared to release in writing to you a for theal list of names, birth dates and information. meantime many residents of newtown say they are numb. the community has set up a memorial with individuals leaving flowers and candles as they commune together. let s go to nbc s chris jansing