White teen killed by black cop in Alabama mirrors Ferguson

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…