You may have seen the very scary video of a brutal high-school mêlée in Chicago, which left four students hospitalized and one dead over the weekend. Well, four of the teenage combatants were charged with the murder of 16-year-old Derrion Albert, who authorities said "had unknowingly walked into the path of a brawl between rival groups," according to the Times. Last year, 34 students were killed at Chicago public schools. [NYT]