It seems a disgruntled Miami Herald employee has holed himself up in the Miami Herald building in downtown Miami carrying weapons. All Herald employees have been told to evacuate. Details are still sketchy at the moment.
Update: The employee is former Herald cartoonist Jose Varela and is holding an El Nuevo Herald editor as hostage.
Update: Apparently, eyewitnesses are confriming that there is no hostage situation within the building, although Varela is said to be carrying some kind of a laser equiped automatic rifle and is at the El Nuevo Herald sixth floor offices.
Update: More at Herald Watch.