The Associated Press reports that Los Angeles County prosecutors have filed arson charges against a 13-year-old boy they believe started the 2,100-acre Morris Fire near Los Angeles last month. Prosecutors in Pomona charged the boy yesterday with two felony counts: arson of a forest and recklessly causing a fire. The boy’s name was not released and he is not in custody. The District Attorney’s office says he must show up for a November arraignment; if convicted, he could be held at a juvenile facility until he turns 25.