"The right-wing death squads probably did come out of the closet."
According to local human rights groups, most of those killed were the victims of right-wing paramilitary death squads.
Human Rights groups also say the security forces maintain close ties with right-wing death squads.
Civilian killings by what appear to be right-wing death squads also have increased.
The commission members were killed by a right-wing death squad.
An estimated 7,000 people have 'disappeared' after being seized by the army and right-wing death squads.
Much of the killing has been attributed to right-wing death squads linked to the Arena party.
Two senior officers are under investigation for ties to right-wing death squads, which traffic in drugs.
And right-wing death squads can strike at any time.
It said killings by right-wing death squads, which often are linked to the security forces, grew the fastest, 150 percent.