The Department of Justice and the FBI will investigate the killing of Trayvon Martin of Sanford, Fla. Critics have blasted the case as a “botched investigation.” Trayvon, 17, was on his way home from a 7-Eleven with Skittles and iced tea when a neighborhood-watch volunteer spotted him and thought he looked “drugged” and acted suspiciously. The man, 28-year-old George Zimmerman, said that Trayvon attacked him from behind and that he was forced to shoot Martin, who was unarmed. Witnesses, however, say they heard a boy pleading, then silence after two gunshots. Trayvon’s family thinks Sanford police are tampering with the investigation, and Zimmerman has not been charged.