Ahmaud Arbery, a 25-year-old African-American, was murdered by two white men last February. Gregory and Travis McMichael, father and son responsible for his death, have never been questioned by justice.
The African-American was jogging in the Satilla Shores neighborhood of Brunswick (a city in the state of Georgia), a white majority neighborhood, when the two men followed him, threatened and killed him.
This story had not caused much noise until the publication of this famous video which outraged public opinion. To do justice to Ahmaud Arbery, the stars mobilized and published photos of the victim on their Instagram account under several hashtags: #justiceforAhmaud or the now infamous #BlackLivesMatter.
The indignation aroused by this tragedy and the involvement of personalities will perhaps make things happen. The Glynn County district attorney has indicated that he wants this case to be tried before a grand jury, to indict the two men, who are still free to this day.