A long-term employee, who was among the dead, opened fire with a pistol at the particleboard plant near Lucerne on February 27. Police said the 42-year-old man drew his gun without warning and began firing.
Kronoswiss was reported to have announced cutbacks in production due to problems with raw material supply, but Kronospan chief executive Mauro Capozzo said no jobs had been lost and no-one had been laid off recently.
Colleagues of the gunman told news organisations that he had changed over the past year and had been suffering from apparent psychological problems. He talked to himself or people that were not there, one employee said.
