An experienced military pilot from Afghanistan opened fired at Kabul airport following an argument on Wednesday. Reports say that the pilot was already distressed because of personal financial issues. The Afghan officer killed a total of eight U.S. military officers and an American civilian.

The U.S. citizens who were killed were sent in Afghanistan to train the Afghan air force. The shootout is the deadliest and bloodiest shooting done by an Afghan soldier.

There have been at least seven of similar attacks at present. However, there are still doubts if the shooter is really under the Afghan government or an insurgent who is impersonating one.

Even though circumstances differ, this is not the same time that Afghan troops or citizens turned against their partners, which seems to be a reflection of their sentiments against foreign aid.

Many Afghans are disappointed since despite the increasing international funding dedicated for their country, the almost 10-year long war has not subsided and shows no hope.

General Mohammad Zahir Azimi, Defense Ministry spokesperson, confirmed that the shooter was an officer who served the Afghan military forces as a pilot for the last two decades.

Ahmad Gul, 48-years-old, was identified as the gunman and also died after the exchange of gun fires following the attack. His brother insisted that Gul was not an insurgent who sympathize the Taliban.

Afghan defense officials said that the incident happened at around 10:25 in the morning at Kabul’s airport. Gul opened fire in a meeting room after a heated argument with a couple of foreigners. However, nobody knows for sure where the argument was rooted.

In Rio de Janeiro, a gunman wandered the hallways of an elementary school on Thursday and murdered a dozen children. It is reported that he lined up all 12 children and shot them point-blank in the head while shouting that he will kill them all.

It is by far the worst school shooting in Brazil. Reports say that it would have been more fatal and more bloodshed if the gunman was not shot in the legs by one of the police officers in the area. The gunman then fell down a flight of stairs and shot himself straight in the head.

A YouTube video circulated showing children running wild inside the school while desperately screaming for help. Many of those children wore blood-soaked uniforms.

The Secretariat of Health and Civil Defense of Rio de Janeiro said that about a dozen other students were injured and two of them are in grave condition.  Officials later announced that a total of 18 children were injured by gunfire. Those who were killed by the incident were between ages 12 to 15.

Andreia Machado, mother of 13-year old Thayne who was shot three times, was crying when she said that she is not certain if her daughter will be able to walk again after her spine was hit and caused her to lose sensation on her legs. Thayne told her mother before she went to the operating room that the gunman just came in shooting.

The gunman was reported to be Wellington Oliveria, 23. No clear motive was discovered but reports said that Oliverio seemed to be infected with AIDS and wanted to kill himself. Why he took down all those children with him, remains to be a puzzle.