
By Chantal Da Silva, Jessica Durham and Alexis Wierenga, Newsweek — Black Lives Matter. It has been five years since Patrisse Khan-Cullors, now 34, first shared those three words on Facebook, reminding Americans that black lives do matter at a time when it felt like they did not. News that George Zimmerman, 34, had been acquitted of all charges in the fatal shooting of 17-year-old Trayvon Martin sent shock waves across the U.S. on…