minutes of inhalation. Many of the victims were identified to be in their teens and 20s, but rescue workers clearing the club also found children and babies. Survivors reported that a bathroom in the nightclub had been used as a nursery, where parents could leave their children while watching the show. Aftermath Following the disaster, an Argentine judge issued a national and international arrest order against Omar Chabán, local businessman and owner of República Cromañón and other nightclubs, including one called Cemento that had been closed by court orders many times before. Chabán was arrested at one of his houses in the neighbourhood of Montserrat. Police are still seeking those responsible for setting off the flare. The guilty parties could face eight to twenty years in prison. President Néstor Kirchner decreed three days of national mourning, and city authorities forbade concerts and closed all nightclubs in Buenos Aires during the mourning period, only to open again, one by one, after they had been checked and approved by the fire department. Pope John Paul II expressed his condolences to victims families in a message sent to officials in Argentine churches. Tributes The parents of many of the victims have worked to keep the victims' memories alive, by planting 194 trees in honor of the deceased, and creating a traveling exhibition of the victims' photographs. A ceramics factory donated memorial plaques to be dispersed across the country. Investigation It later became known that República Cromañón had been overdue for a fire hazard inspection since late November 2004. Although Buenos Aires Mayor Aníbal Ibarra blamed the Fire Department of the Argentine Federal Police (responsible for the inspections), several flaws in the city's inspection system soon surfaced. In addition to the city's poor planning for a disaster of this magnitude, critics pointed to Ibarra for failing to reorganize Buenos Aires' inspection system. A few days after the fire, Ibarra reshuffled the entire Buenos Aires security and emergency administration. The City Legislature announced that Mayor Ibarra was going to face a questioning session, but failed to achieve the necessary votes to force his questioning. Shortly thereafter, Ibarra voluntarily submitted to a questioning session, and announced a recall referendum to decide whether he would remain in office or not. Relatives and friends of the dead organized several marches to Plaza de Mayo demanding the resignation of Aníbal Ibarra as Mayor of Buenos Aires, the conviction of