Juan Carter, 26, was killed on the morning of July 7, 2011, in New Orleans while riding with his mother to a scheduled court hearing. A black truck pulled alongside their vehicle and gunfire struck Carter, fatally wounding him in a daylight attack. At the time he was facing a double murder charge from a 2010 incident; his family maintained his innocence and viewed the upcoming hearing as a chance to clear his name.

Police arrested and charged Bokio Johnson, the father of one of the people Carter was accused of killing in 2010, in connection with Carter’s slaying. Authorities characterized the arrest as pointing to vigilante retaliation rather than a random act.

Did anyone in New Orleans have information about the shooting or about Carter’s movements that morning?