Tragedy in Brazil: A former student killed at least 12 people at an elementary school in Rio de Janeiro this morning. Wellington Menezes de Oliveira, 24, brought two loaded 38-caliber revolvers into the school and opened fire before shooting himself, say police. He reportedly left a note outlining his desire to commit suicide, reports the Wall Street Journal. A police officer who happened to be nearby heard children crying and was able to corner Oliveira, shooting him in the leg before he turned the gun on himself. Another 20 have been wounded.