news." wenjian liu took that fatal shift because another police officer was late. earlier today, the mayor visited the memorial for the two murder d ed officers and he is pleading for calm. there are even calls for retired offices from them to block him from the funerals. but even at a time when it seems like people could not be more divided, there are signs that some people are coming together. our cnn's martin savidge has been live in brooklyn for us. tell us more about how this is happening. >> reporter: well, suzanne, it's interesting that most of those calls are for unity, calm or for peace or coming together and have actually come from this site, where i am standing. in the past it might have been called the scene of the crime but now it's something far more. it's been called a gathering place for many new yorkers, a