A two-year-old case involving the shooting death of an unarmed 18-year-old white man by a black police officer is gaining attention on social media in the wake of this week’s protests and rioting in Ferguson, Missouri.

Gilbert Collar, a white, unarmed 18-year-old under the influence of drugs was shot and killed Oct. 6, 2012, by Officer Trevis Austin, who is black, in Mobile, Alabama. Despite public pressure for an indictment, a Mobile County grand jury refused to bring charges against Officer Austin, concluding that the officer acted in self-defense.

The circumstances mirror those of the Aug. 9 shooting death of Michael Brown, a black unarmed 18-year-old under the influence of drugs by Officer Darren Wilson, who is white, in Ferguson.