Updated

They were killed in Wisconsin, New York and California. Some were shot on the street. One was killed in a Wal-Mart. Another died after being placed in a chokehold. All died at the hands of police and all have been united by one thing: the killing of Michael Brown.

Details may differ, circumstances of their deaths may remain unknown, but the outrage that erupted after the Aug. 9 shooting of the unarmed, black 18-year-old by a white officer in Ferguson, Missouri, has become a rallying cry in protests over police killings across the nation.

While there's been nothing approaching the violence and destruction seen in the St. Louis suburb, demonstrations fueled by a sense of injustice and buoyed with the help of social media have rolled across cities this month.