Black Lives Matter founded following Trayvon Martin verdict

The day George Zimmerman was acquitted in the killing of 17-year-old Trayvon Martin, Alicia Garza wrote a Facebook post she called a love letter to Black people. Patrisse Cullors shared it with the hashtag #BlackLivesMatter, and with Opal Tometi they co-founded a movement that would become one of the most significant civil rights organizations of the twenty-first century.