Alton Sterling, a black man from Baton Rouge, was killed by police there this week in a case that reignited tensions over police violence toward the African-American community. Another case in Minnesota, the shooting death of Philando Castileduring a traffic stop, similarly sparked outrage and protests in many parts of the country. Adding yet another layer of tragedy to the week, five police officers were gunned down by a sniper in Dallas during a protest over police violence. Seven others were wounded. Quinyetta McMillon, the mother of Sterling's oldest son -- along with her lawyer, L. Chris Stewart -- spoke to CBS News correspondent David Begnaud about how her family is coping with their loss and how the nation can move forward from the recent violence. Read more http://www.cbsnews.com/news/quinyet...terlings-son-speaks-out-about-emotional-week/