and then all of a sudden, baaa, baaa, baaa baaa baaa, baaa, baaa.nd i saw what i believe were two police officers drop. >> reporter: right in front of you. >> it was close enough to where my reaction was to grab my stomach and grab my chest because i wanted to make sure i hadn't been shot. we all want to know how something so beautiful could turn so evil, so quickly. and by the end of the night, i found myself after doing an interview, just sitting there crying with my head in my hands, and just devastated. i mean, this was a nonviolent, peaceful protest, intended to bring about a better world. and, you know, our goal was to combat violence. you can't combat violence with violence. i mean, we are nonviolent activists. and for this to be the mark of this protest, it's devastating for these families to be suffering. it's devastating. >>> hi, everybody, i'm thomas roberts live from our msnbc head quarters in new york. we follow breaking news out of dallas, the shootings that killed five officers and left a suspected gunman dead. and in just the last fe