Protestors, Lakesha Hall, 32, of Sanford, center, and her son, Calvin Simms, 12, right, gather early for a rally for Trayvon Martin, the black teenager who was fatally shot by a neighborhood watch captain last month, at Fort Mellon Park in Sanford, Fla., Thursday, March 22, 2012. (AP Photo/Julie Fletcher)
The investigation into last month's shooting death of an unarmed black teenager in an Orlando suburb is out of the hands of the beleaguered police chief and the county prosecutor with the Justice Department looking at possible civil rights violations and a grand jury perhaps considering charges.