The United States later blames the Chilean secret police.
In June and July 2005, Chilean police found two arms caches in or around the colony.
When the Chilean police closed in on the station, "Pedro" escaped.
Hirsch has been arrested on a number of occasions by the Chilean police for taking part in demonstrations in support of political causes.
Fighting with security personnel, the Chilean national police, and other team barra bravas is a common occurrence.
The Chilean secret police on this occasion were met with a hail of automatic weapons fire, killing a carabinero and a girl.
The former chief of the Chilean police, Manuel Contreras, went to prison three years ago for the crime.
Last week the trial resumed in Washington and a remorseful former agent of the Chilean secret police took the stand.
Chilean police at first declared Huber's death to be a suicide.
Verdugo's own father was killed by the Chilean secret police in 1976.