Four people in Brazil have been charged with manslaughter in connection with the deaths of 241 people in The Kiss nightclub fire in January...Most of the victims died after inhaling the toxic smoke produced when ceiling insulation foam caught fire. Investigators also criticised the fact that the venue only had one exit...The police investigation identified 16 potential accused, of which eight have been charged...Four people were charged earlier for obstructing the course of justice, including two firemen accused of hiding evidence that the club's fire licence had expired. Nightclub owners Mauro Hoffmann and Elissandro Spohr and two members of the Gurizada Fandangueira band, Marcelo de Jesus dos Santos and Luciano Bonilha Leao, face trial for manslaughter. Prosecutor Joel Dutra said..."The reason they died was the search for profit, through the use of inadequate fireworks and highly inflammable foam on the nightclub's ceiling."..The fire, and the lack of safety precautions at the venue, have prompted widespread concern about Brazil's ability to host major sporting events in the next four years.